Resonance SolsticeMasakiBuild and Guide

Introduction

Best guide and build for Masaki from Resonance Solstice. Masaki is a SSR rarity character from the Offense class and Electro Fire Frost Reverb elements, who belongs to the Night Chains faction. Their position in combat is Rear.

To learn more about Masaki check the sections below. Use the tabsto quickly switch to the kind of information you're looking for.

Profile

Review

Teams

To learn more about Masaki check the sections below. Use the tabsto quickly switch to the kind of information you're looking for.

Cards

The Magician

Type: S1 (Normal) | Cost: 0 | Amount: 2

Choose one from [The Empress], [The Emperor] and [The Hierophant] to add to your hand, and put the other two in your deck.

The Empress

Type: S1 (Derivative) | Cost: 2 | Amount: -

Heal an ally for 30% of Max HP and [Purge] them.
HP gained this way can exceed Max HP. If this happens, gain 0.1 Cost for every 10,000 HP the target has, up to 5 Cost.
This card is [Destroyed] when used.

Show Skill Effects

The Emperor

Type: S1 (Derivative) | Cost: 2 | Amount: -

Immediately activate [Leader Skill] and [Discard] action.
If [Leader Skill] has the [Familiar] term, draw 1 card.
This card is [Destroyed] when used.

The Hierophant

Type: S1 (Derivative) | Cost: 2 | Amount: -

Designate an ally as [The Hierophant] and stack [Sacred Crown] on them.
Each stack increases their [Familiar]'s DMG dealt by 10%, and their Ultimate card's DMG dealt by 10% if that card doesn't have the [Familiar] term, up to 5 stacks.
If the target already has 5 stacks, draw 1 card instead, prioritizing the target's skill cards.
When targeting another ally, remove all stacks.
This card is [Destroyed] when used.

The Chariot

Type: S2 (Normal) | Cost: 3 | Amount: 1

Summon the skeletal familiar [Phlegethon].
Whenever drawing a card, for each Cost the card requires, attack all enemies, dealing DMG once and inflicting [Knockback] and [Wildfire], up to 3 attacks.
Black cards are considered 5 Cost.
[Phlegethon] is [Familiar].
[Phlegethon]'s ATK equals Masaki's ATK.
DMG: 1500% (Fire).

Show Skill Effects

The Devil

Type: Ultimate (Normal) | Cost: 2 | Amount: 1

Summon the shadow familiar [Nyx] to possess the enemy, lasting 10 seconds. During this period:
Randomly inflict [Thunder], [Blaze] or [Frostbite] to the target every second.
Whenever the target is inflicted with a negative effect, deal DMG once to it.
[Nyx] can respond to:
[Thunder], [Bolt], [Magnetize], [Paralysis], [Blaze], [Wildfire], [Frostbite], [Freeze], [Slash], [Rend], [Scorch], [Interrupt], [Stun], [Knockback] and [Launch].
[Nyx] is [Familiar].
[Nyx]'s ATK equals Masaki's ATK.
DMG: 2600% (Reverb).

Requirements: Cooldown: 35 seconds. Whenever obtaining cards with the [Familiar] term or [Shadowcraft], reduce the cooldown by 5 seconds. Whenever obtaining self skill cards, reduce the cooldown by 10 seconds.

Show Skill Effects

Comeuppance

Type: Ultimate (Derivative) | Cost: 1 | Amount: -

Fruit of the Devil.
Inflict [Restless] and [Berserk] to the target.
Draw 1 card.
This card is [Destroyed] when used.

Show Skill Effects

Shadowcraft

Type: Ultimate (Derivative) | Cost: 2 | Amount: -

Casts Arcane Spell on the target, dealing damage once and inflicting [Injure].
[Curse] the affected enemy.
This card is [Destroyed] when played or discarded.
Special Effect: [Darkest Hour]
When this card is played 13 times, summons Blood Demonlord that deals devastating damage to all enemies once.
This damage is halved for Mech units.
DMG: [Arcane Spell]: 3900% (Reverb). [Darkest Hour]: 3900% (Reverb).

Show Skill Effects

Boundless Abyss

Type: Ultimate (Derivative) | Cost: 4 | Amount: -

Generate an Astral Ember in the target area, lasting 5 seconds.
During this period:
Pull all enemies to the center of the area and stack [Spatial Rift] to the center every second. Each stack deals DMG once to enemies, increase their Final DMG taken by 15%, and inflict [Erode].
When the effect expires, remove all stacks.
[Boundless Abyss] is [Wave].
This card is [Destroyed] when used.
DMG: 26000% (Reverb).

Show Skill Effects

Resonance

The Fool

Type: Major

When obtaining [The Empress], [The Emperor] or [The Hierophant], determine its position.

If it is upright, summon 1 [Royal Guard] whose [Basic Attack] deals Fire DMG.

If it is reversed, summon 1 [Shadow Lancer] whose [Basic Attack] deals Frost DMG.

[Royal Guard] and [Shadow Lancer] are [Familiars]. Up to 6 of them can exist on the field. Their ATK equals Masaki's ATK, and HP equals 33% of Masaki's HP.

R1.5

Battle Spirit

Type: Minor

Self and own [Familiar] [Basic Attack] DMG increases by 15/150%.

The Hanged Man

Type: Major

Enhance [The Chariot]:

Summon the skeletal familiar [Phlegethon].

Whenever drawing a card, for each Cost the card requires, attack all enemies, dealing DMG once and inflicting [Knockback] and [Wildfire], up to 3 attacks.

After 3 attacks, [Phlegethon] transforms into [Cocytus], inflicting [Freeze] to all enemies and absorbing DMG for all allies.
Black cards are considered 5 Cost.

[Phlegethon] and [Cocytus] are [Familiars].

[Phlegethon]'s ATK equals Masaki's ATK.

[Cocytus]'s HP equals the current HP of the ally with the highest HP.

R2.5

The Magician

Type: Minor

Ally [Familiar] DMG increases by 2/20%.

Vitality

Type: Major

HP +35%

R3.5

Restless

Type: Minor

Allies under [Restless] effect deal 1/10% more Final DMG.

Wands

Type: Major

There must be 1 [The Magician] among the first 5 hand cards at the start of battle.

When using [The Empress], [The Emperor] or [The Hierophant], draw 1 card.

R4.5

The Devil

Type: Minor

[The Devil] DMG increases by 3/30%.

Death

Type: Major

After using [The Devil], generate 1 [Shadowcraft] in your hand, and it can exceed your hand size.

When [The Devil] is in effect:

For every 39 hits [The Devil] deals, generate 1 [Comeuppance] in your hand, and it can exceed your hand size.

If you have both [Comeuppance] and [Shadowcraft] in your hand, they are automatically fused into [Boundless Abyss], and it can exceed your hand size.

Awakening

Justice

Awakening 1

Whenever summoning a [Familiar], increase self ATK and DEF by 2%, up to 50%.

The Lovers

Awakening 2

Enhance [The Devil]:

Summon the shadow familiars [Nyx] and [Erebus] to possess the enemy, lasting 10 seconds. During this period:

Randomly inflict [Thunder], [Blaze] or [Frostbite] to the target every second.

Whenever the target is inflicted with a negative effect, deal DMG once to it.

[Nyx] can respond to:

[Thunder], [Bolt], [Magnetize], [Paralysis], [Blaze], [Wildfire], [Frostbite], [Freeze], [Slash], [Rend], [Scorch], [Interrupt], [Stun], [Knockback] and [Launch].

[Erebus] can respond to:

[Erode], [Corrode], [Injure], [Corrupt], [Confuse], [Sleep], [Moemoe], [Imprison], [Fetter], [Curse], [Gaze] and [Hallucinate].

[Nyx] and [Erebus] are [Familiars].

[Nyx]'s ATK equals Masaki's ATK.

[Erebus]'s ATK equals Masaki's DEF.

Battle Will

Awakening 3

ATK+150

DEF+150

HP+15%

Judgment

Awakening 4

For each card in your deck, all enemies take 1% more Final DMG, up to 50%.

Cups

Awakening 5

When an ally becomes [The Hierophant], stack [Cups] on them.

Each stack increases their ATK and DEF by 30, up to 5 stacks.

When another ally becomes [The Hierophant], remove all stacks.

Profession Skills

Reso 1

Designated Goods Trading

Reso 1

Limited Game Cartridge and Commemorative Record purchase +20%.

Reso 4

Designated Goods Trading

Reso 4

Walkman purchase +20%.

Reso 5

Designated Goods Trading +

Reso 5

Limited Game Cartridge and Commemorative Record purchase +10%.

Stats (Max)

Masaki stats aren't available yet.

Review

Masaki is a Sub-DPS and Support mainly for Familiar setups. She works by buffing an ally (Mainly the DPS) stacking their stats while providing debuffs and interruption to enemies with the help of her Familiars. By combining two derivative cards, she can unleash a powerful attack that increases the enemies’ Final DMG taken and inflicts them with Erode.

Playstyle and Key Mechanics

Masaki’s kit revolves around summoning Familiars and buffing a single ally accordingly, these buffs usually go to the Main DPS of the team.

Main Cards:

For her first card [The Magician] a purple card that is used to choose one derivative card; [The Empress], [The Emperor] and [The Hierophant]. These cards are mainly utilized for team related utilities.
Next is [The Chariot] a 3-cost purple card that summons the Familiar [Phlegethon] which inherits Masaki’s ATK and deals DMG, inflicts [Knockback] and [Wildfire] according to the cost of the drawn card (up to 3 attacks).
Then we have [The Devil] her ultimate where she summons the familiar [Nyx] that inherits her ATK for 10 seconds and possesses the target which is then inflicts [Thunder], [Blaze] or [Frostbite] per second additionally deals DMG whenever reacting to a status effect [Thunder], [Bolt], [Magnetize], [Paralysis], [Blaze], [Wildfire], [Frostbite], [Freeze], [Slash], [Rend], [Scorch], [Interrupt], [Stun], [Knockback] and [Launch].

Derivatives:

The Empress - Heal an ally for 30% of Max HP and [Purge] them.HP gained this way can exceed Max HP. If this happens, gain 0.1 Cost for every 10,000 HP the target has, up to 5 Cost.
The Emperor - Immediately activate [Leader Skill] and [Discard] action. If [Leader Skill] has the [Familiar] term, draw 1 card.
The Hierophant - Designate an ally as [The Hierophant] and stack [Sacred Crown] on them. Each stack increases their [Familiar]'s DMG dealt by 10%, and their Ultimate card's DMG dealt by 10% if that card doesn't have the [Familiar] term, up to 5 stacks. If the target already has 5 stacks, draw 1 card instead, prioritizing the target's skill cards. When targeting another ally, remove all stacks.
Comeuppance - Fruit of the Devil. Inflict [Restless] and [Berserk] to the target. Draw 1 card.
Boundless Abyss - Generate an Astral Ember in the target area, lasting 5 seconds. During this period: Pull all enemies to the center of the area and stack [Spatial Rift] to the center every second. Each stack deals DMG once to enemies, increase their Final DMG taken by 15%, and inflict [Erode]. When the effect expires, remove all stacks.

Investment

Masaki’s best Awakening breakpoint is Awakening 2 as it will expand her team options. Further awakening investment will provide more overall team damage and more stat buffs to strengthen your Main DPS crowned through [The Hierophant].

Awakening 1 - Increases Stats whenever a [Familiar] is summoned.

Awakening 2 - Enhances [The Devil] by also summoning the familiar [Erebus] which inherits Masaki’s DEF and turns it to ATK, this familiar is the same as [Nyx] with the exception that it reacts to different status effects mainly [Erode], [Corrode], [Injure], [Corrupt], [Confuse], [Sleep], [Moemoe], [Imprison], [Fetter], [Curse], [Gaze] and [Hallucinate].
Awakening 4 - More DMG taken to all enemies according to the number of cards in deck.
Awakening 5 - Designated [The Hierophant] gains [Cups] stack which increases their ATK and DEF.

Resonance

Resonance 1 — When obtaining [The Empress], [The Emperor] or [The Hierophant], summons either [Royal Guard] or [Shadow Lancer] according to the positioning of the derivatives. This familiars inherits Masaki’s ATK and 33% of her HP, these familiars are limited to 6 at once.
Resonance 2 — Enhances [The Chariot] by [Phlegethon] into [Cocytus] after 3 attacks which now inflicts [Freeze] to all enemies and absorbs DMG for allies.
Resonance 4 — [The Magician] will be always in the first 5 cards in hand, and also enhances [The Empress], [The Emperor] or [The Hierophant] to draw 1 card when used.
Resonance 5 — Enhances [The Devil] by also generating [Shadowcraft] when used, and while it is in effect every 39 hits from either [Nyx] or [Erebus] will generate 1 [Comeuppance] which can be combined with [Shadowcraft] to be fused into [Boundless Abyss],

Synergies

Info

The Synergies mentioned here are merely samples. Taking their core mechanics as an example, you can use many other characters as replacements or other synergies.

Margiela The Stargazer - One of the dedicated DPS for Masaki to support, she summons [Mors] that applies elemental status effects that can synergize with [Nyx].
Olivien - A highly valued support for Familiar teams. Very much needed to be with her to provide cost generation and more buffs.
Ren - Ren can provide invisibility and buff all familiars Masaki can summon.

Gear and Affixes

Some examples of overall good equipment choices for Masaki. For specific picks, please check the respective teams.

UR Phoenix Down: Increase ally [Familiar] DMG by 20%. For each [Familiar] on the field, further increase the DMG by 3%, up to a maximum of 50%.
UR Outer Stars: When a [Nova], [Elemental Nova] or [Supernova] is generated, increase all allies' ATK by 1% up to a maxixmum of 30%
SSR Nightfall Starquest: Playing a Purple card has a 10% chance to generate a [Nova] in your hand. The trigger rate stacks.
SSR Unbewusstes Probe: Whenever you play a Red Card of cost 3 or more, random enemy receive 3% less healing. This effect stacks up to a maximum of 75%.
SSR Million-Tons Revelation: ATK +80
SSR: Degenerate Blackrock: Increases wearer's final DMG dealt by 10%. This effect stacks.
SR Viscera Collector MK 0: Using [Leader Skill] restores 0.4 Cost. This effect stacks.
R Mass Projector: Using [Leader Skill] increases ATK by 1.5%. This effect stacks.
R Magic Wand: Playing a Purple card has a 20% chance to restore 1 Cost. The trigger rate stacks.

Armor:

UR Grandfather Reactive Armor: At the start of battle, convert 5% ATK of the ally with highest DEF to the wearer's ATK. When taking DMG, transfer 25% of the DMG taken to the ally with highest DEF.
SSR Crimson Prophecy: Heal self for 5% of the DMG dealt by [Erode] and [Corrode].
SSR Simulated Stars: Using [Leader Skill] restores 5% HP. This effect stacks.
SSR Familiar Armor: Max HP +5%. For each [Familiar] present on the field, Final DMG received by wearer is reduced by 5%, up to 35%.
SSR External Memory Matrix: Max damage taken per hit is 33% of Max HP.
SSR Black Rock Armor: Reduces wearer's final DMG taken by 10%. This effect stacks.
SSR High Dimension Construct: Generating a Black Card restores 5% of Max HP. This effect stacks.
SR Resonance Fiber: When own skill card is used, restores 2% of Max HP.

Accessory:

UR Karma Dice: Increases all allies' all trigger rates by 3%. This effect stacks.
UR Enchanted Magic Stone: Increase the DMG dealt by Orange cards by 50%. For each card in the discard pile, further increase the DMG by 1%
UR Radiant Galaxy: When drawing [Reverengy] from the deck, destroy it and generate a [Nova] in your hand.
SSR Chladni Arc: Wearer's [Wave] deals 20% more damage. This effect stacks.
SSR Stellar Ember: [Nova], [Elemental Nova], and [Supernova] deal 20% more damage. This effect stacks.
SSR Mobius: Cards in your hand are replenished 0.25 seconds faster. This effect stacks.
SSR Divinity Seal: Gains 2 Cost at the battle's beginning. This effect stacks.
SSR Fengshui Tactical Drone: For every 8 cards used, increases ATK or DEF by 2%, up to a maximum of 50%.

Affixes

Using [Leader Skill] restores 0.2/0.3 Cost. This effect stacks.
Using [Leader Skill] restores 2/3% of own Max HP. This effect stacks.
Using [Leader Skill] increases own ATK by 0.5/1%. This effect stacks.
Increases own ATK by 1/3%. This effect stacks.
Increases own ATK by 10/30. This effect stacks.
Restores 0.01/0.02 Cost per second. This effect stacks.
Increases final DMG dealt by 2/5%. This effect stacks.
Gains [Hyperarmor] for 1 second when using own skill cards. This effect stacks.
Deals 3/5% more Reverb DMG. This effect stacks.
Gains 0.5-1 more Cost at the start of battle. This effect stacks.
This character's [Familiar] cards deal 5/10% more damage. This effect stacks.
When using a [Familiar] card, gains 0.1/0.2 Cost. This effect stacks.
[Shadowcraft] deals 5/10% more damage. This effect stacks.
[Nova], [Elemental Nova], and [Supernova] deal 5/10% more damage. This effect stacks.

Pros & Cons

Pros

Provides a wide range of utility by providing card draw, cost generation, buffs, and healing to allies, as well as debuffs and interruption against enemies.
Incredible support for familiar setups. She expands her use case for other setups when reaching Awakening 2, making her a general support by summoning Erebus to react to additional status effects like Erode, Curse, etc.

Cons

Despite having an “Easy” Leader Skill condition, she fails to prove her worth as a leader, making her a leader who can be considered when she is at Awakening 2; even then, she will fall short compared to other dedicated leader crew members.
Despite having card draws through her derivatives, it is often unreliable alone and will still require a dedicated crew member for card draws, like Nayuta or Rina Von.
Expensive cards will require a dedicated cost generator like Olivien, which greatly synergizes with her.

Ratings

General Performance

Best Teams

The teams below come from our Teams database and showcase ANY team with Masaki present within in all content available in the game.

Team 122

Stargazer Familiar Premium

Mode: Combat

Margiela [The Stargazer]New

Awakening ☆☆

Resonance ☆☆☆☆☆

Role Leader

Weapon Kusa RyujakuArmor Grandfather Reactive ArmorAccessory Radiant Galaxy

Raziel [The Reminisce]

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Outer StarsArmor Crimson ProphecyAccessory Hulton Balloon

MasakiNew

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Phoenix DownArmor Crimson ProphecyAccessory Enchanted Magic Stone

Nayuta

Awakening -

Resonance ☆☆☆☆☆

Role -

Weapon Space TangentArmor Crimson ProphecyAccessory Dawncloud Seal

Olivien

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Nightfall StarquestArmor Crimson ProphecyAccessory Stellar Ember

About the team

Overall Rating

★★★★★

Complexity

★★

Team Cost

★★★★

Comment

A Stargazer team highly focused on familiar summons, with Masaki added in the team she can provide strong buffs for Margiel [The Stargazer] she also synergize well with [Mors] when summoning [Nyx].

Team Code

Team 123

Ushana Crowned

Mode: Combat

Ushana

Awakening ☆☆

Resonance ☆☆☆☆☆

Role Leader

Weapon Kusa RyujakuArmor Grandfather Reactive ArmorAccessory Radiant Galaxy

Raziel [The Reminisce]

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Outer StarsArmor Crimson ProphecyAccessory Hulton Balloon

Caroline

Awakening ★

Resonance ☆☆☆☆☆

Role -

Weapon Nightfall StarquestArmor Crimson ProphecyAccessory Octadragon Formation

MasakiNew

Awakening ★★

Resonance ☆☆☆☆☆

Role -

Weapon Phoenix DownArmor Crimson ProphecyAccessory Enchanted Magic Stone

Margiela [The Stargazer]New

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Critical Unpredicted PrototypeArmor Crimson ProphecyAccessory Karma Dice

About the team

Overall Rating

★★★★★

Complexity

★★★★

Team Cost

★★★★

Comment

An Ushana Team with Masaki for utility and Stargazer for added support for generating nova to help reduce cooldown of Leader Skill.

Team Code

Team 124

Masaki Familiar Team

Mode: Combat

MasakiNew

Awakening ★★

Resonance ☆☆☆☆☆

Role Leader

Weapon Phoenix DownArmor Grandfather Reactive ArmorAccessory Karma Dice

RenNew

Awakening -

Resonance ☆☆☆☆☆

Role -

Weapon Space TangentArmor Simulated StarsAccessory Dawncloud Seal

Olivien

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Enchanted SwordArmor Simulated StarsAccessory Hulton Balloon

Verlaine

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Magic WandArmor Simulated StarsAccessory Enchanted Magic Stone

Lissandra

Awakening -

Resonance ☆☆☆☆☆

Role -

Weapon Magic WandArmor Simulated StarsAccessory Mobius

About the team

Overall Rating

★★★

Complexity

★★★★

Team Cost

★★★★

Comment

A Masaki focused team that will require atleast Awakening 2 to show significant damage numbers, this team is very optional and you may want to play other teams with her as a Sub-DPS/Support rather than a Main DPS.

Team Code

Team 126

Reeva Familiar Freeze

Mode: Combat

ReevaNew

Awakening ☆☆

Resonance ☆☆☆☆☆

Role Leader

Weapon Phoenix DownArmor Grandfather Reactive ArmorAccessory Eye of Logos

Tennie

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Treasure GunArmor Simulated StarsAccessory Dawncloud Seal

MasakiNew

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Tenryu Rangetsu ChainArmor Simulated StarsAccessory Confiscated Item No. 113

Olivien

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Kageha TantoArmor Simulated StarsAccessory Hulton Balloon

Verlaine

Awakening ☆☆

Resonance ☆☆☆☆☆

Role -

Weapon Exile CodeArmor Simulated StarsAccessory Karma Dice

About the team

Overall Rating

★★★

Complexity

★★★

Team Cost

★★★★

Comment

Premium Reeva setup mostly with inflicting Frost Status Effects and summoning Familiars.

Team Code

Additional information

For more information about team building, check the guide below:

Team Building

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Playstyle and Key Mechanics

Masaki’s kit revolves around summoning Familiars and buffing a single ally accordingly, these buffs usually go to the Main DPS of the team.

Main Cards:

For her first card [The Magician] a purple card that is used to choose one derivative card; [The Empress], [The Emperor] and [The Hierophant]. These cards are mainly utilized for team related utilities.
Next is [The Chariot] a 3-cost purple card that summons the Familiar [Phlegethon] which inherits Masaki’s ATK and deals DMG, inflicts [Knockback] and [Wildfire] according to the cost of the drawn card (up to 3 attacks).
Then we have [The Devil] her ultimate where she summons the familiar [Nyx] that inherits her ATK for 10 seconds and possesses the target which is then inflicts [Thunder], [Blaze] or [Frostbite] per second additionally deals DMG whenever reacting to a status effect [Thunder], [Bolt], [Magnetize], [Paralysis], [Blaze], [Wildfire], [Frostbite], [Freeze], [Slash], [Rend], [Scorch], [Interrupt], [Stun], [Knockback] and [Launch].

Derivatives:

The Empress - Heal an ally for 30% of Max HP and [Purge] them.HP gained this way can exceed Max HP. If this happens, gain 0.1 Cost for every 10,000 HP the target has, up to 5 Cost.
The Emperor - Immediately activate [Leader Skill] and [Discard] action. If [Leader Skill] has the [Familiar] term, draw 1 card.
The Hierophant - Designate an ally as [The Hierophant] and stack [Sacred Crown] on them. Each stack increases their [Familiar]'s DMG dealt by 10%, and their Ultimate card's DMG dealt by 10% if that card doesn't have the [Familiar] term, up to 5 stacks. If the target already has 5 stacks, draw 1 card instead, prioritizing the target's skill cards. When targeting another ally, remove all stacks.
Comeuppance - Fruit of the Devil. Inflict [Restless] and [Berserk] to the target. Draw 1 card.
Boundless Abyss - Generate an Astral Ember in the target area, lasting 5 seconds. During this period: Pull all enemies to the center of the area and stack [Spatial Rift] to the center every second. Each stack deals DMG once to enemies, increase their Final DMG taken by 15%, and inflict [Erode]. When the effect expires, remove all stacks.

Investment

Awakening 1 - Increases Stats whenever a [Familiar] is summoned.

Awakening 2 - Enhances [The Devil] by also summoning the familiar [Erebus] which inherits Masaki’s DEF and turns it to ATK, this familiar is the same as [Nyx] with the exception that it reacts to different status effects mainly [Erode], [Corrode], [Injure], [Corrupt], [Confuse], [Sleep], [Moemoe], [Imprison], [Fetter], [Curse], [Gaze] and [Hallucinate].
Awakening 4 - More DMG taken to all enemies according to the number of cards in deck.
Awakening 5 - Designated [The Hierophant] gains [Cups] stack which increases their ATK and DEF.

Resonance

Resonance 1 — When obtaining [The Empress], [The Emperor] or [The Hierophant], summons either [Royal Guard] or [Shadow Lancer] according to the positioning of the derivatives. This familiars inherits Masaki’s ATK and 33% of her HP, these familiars are limited to 6 at once.
Resonance 2 — Enhances [The Chariot] by [Phlegethon] into [Cocytus] after 3 attacks which now inflicts [Freeze] to all enemies and absorbs DMG for allies.
Resonance 4 — [The Magician] will be always in the first 5 cards in hand, and also enhances [The Empress], [The Emperor] or [The Hierophant] to draw 1 card when used.
Resonance 5 — Enhances [The Devil] by also generating [Shadowcraft] when used, and while it is in effect every 39 hits from either [Nyx] or [Erebus] will generate 1 [Comeuppance] which can be combined with [Shadowcraft] to be fused into [Boundless Abyss],

Synergies

Info

The Synergies mentioned here are merely samples. Taking their core mechanics as an example, you can use many other characters as replacements or other synergies.

Margiela The Stargazer - One of the dedicated DPS for Masaki to support, she summons [Mors] that applies elemental status effects that can synergize with [Nyx].
Olivien - A highly valued support for Familiar teams. Very much needed to be with her to provide cost generation and more buffs.
Ren - Ren can provide invisibility and buff all familiars Masaki can summon.

Gear and Affixes

Some examples of overall good equipment choices for Masaki. For specific picks, please check the respective teams.

UR Phoenix Down: Increase ally [Familiar] DMG by 20%. For each [Familiar] on the field, further increase the DMG by 3%, up to a maximum of 50%.
UR Outer Stars: When a [Nova], [Elemental Nova] or [Supernova] is generated, increase all allies' ATK by 1% up to a maxixmum of 30%
SSR Nightfall Starquest: Playing a Purple card has a 10% chance to generate a [Nova] in your hand. The trigger rate stacks.
SSR Unbewusstes Probe: Whenever you play a Red Card of cost 3 or more, random enemy receive 3% less healing. This effect stacks up to a maximum of 75%.
SSR Million-Tons Revelation: ATK +80
SSR: Degenerate Blackrock: Increases wearer's final DMG dealt by 10%. This effect stacks.
SR Viscera Collector MK 0: Using [Leader Skill] restores 0.4 Cost. This effect stacks.
R Mass Projector: Using [Leader Skill] increases ATK by 1.5%. This effect stacks.
R Magic Wand: Playing a Purple card has a 20% chance to restore 1 Cost. The trigger rate stacks.

Armor:

UR Grandfather Reactive Armor: At the start of battle, convert 5% ATK of the ally with highest DEF to the wearer's ATK. When taking DMG, transfer 25% of the DMG taken to the ally with highest DEF.
SSR Crimson Prophecy: Heal self for 5% of the DMG dealt by [Erode] and [Corrode].
SSR Simulated Stars: Using [Leader Skill] restores 5% HP. This effect stacks.
SSR Familiar Armor: Max HP +5%. For each [Familiar] present on the field, Final DMG received by wearer is reduced by 5%, up to 35%.
SSR External Memory Matrix: Max damage taken per hit is 33% of Max HP.
SSR Black Rock Armor: Reduces wearer's final DMG taken by 10%. This effect stacks.
SSR High Dimension Construct: Generating a Black Card restores 5% of Max HP. This effect stacks.
SR Resonance Fiber: When own skill card is used, restores 2% of Max HP.

Accessory:

UR Karma Dice: Increases all allies' all trigger rates by 3%. This effect stacks.
UR Enchanted Magic Stone: Increase the DMG dealt by Orange cards by 50%. For each card in the discard pile, further increase the DMG by 1%
UR Radiant Galaxy: When drawing [Reverengy] from the deck, destroy it and generate a [Nova] in your hand.
SSR Chladni Arc: Wearer's [Wave] deals 20% more damage. This effect stacks.
SSR Stellar Ember: [Nova], [Elemental Nova], and [Supernova] deal 20% more damage. This effect stacks.
SSR Mobius: Cards in your hand are replenished 0.25 seconds faster. This effect stacks.
SSR Divinity Seal: Gains 2 Cost at the battle's beginning. This effect stacks.
SSR Fengshui Tactical Drone: For every 8 cards used, increases ATK or DEF by 2%, up to a maximum of 50%.

Affixes

Using [Leader Skill] restores 0.2/0.3 Cost. This effect stacks.
Using [Leader Skill] restores 2/3% of own Max HP. This effect stacks.
Using [Leader Skill] increases own ATK by 0.5/1%. This effect stacks.
Increases own ATK by 1/3%. This effect stacks.
Increases own ATK by 10/30. This effect stacks.
Restores 0.01/0.02 Cost per second. This effect stacks.
Increases final DMG dealt by 2/5%. This effect stacks.
Gains [Hyperarmor] for 1 second when using own skill cards. This effect stacks.
Deals 3/5% more Reverb DMG. This effect stacks.
Gains 0.5-1 more Cost at the start of battle. This effect stacks.
This character's [Familiar] cards deal 5/10% more damage. This effect stacks.
When using a [Familiar] card, gains 0.1/0.2 Cost. This effect stacks.
[Shadowcraft] deals 5/10% more damage. This effect stacks.
[Nova], [Elemental Nova], and [Supernova] deal 5/10% more damage. This effect stacks.