
To learn more about Mast check the sections below. Use the tabsto quickly switch to the kind of information you're looking for.
Profile
Normal Attack
SMG
Mode: Normal
Ammo: 120
Reload: 1.5s
■ Affects target enemy.
Deals 8.73% ATK as damage. Deals 200% damage when attacking core.
Pirate's Grit
Passive
Cooldown: -
■ Activates when crit attack hits 2 time(s). Affects the target(s).
Sea Breeze: DEF ▼ 1.9% of the caster's DEF, stacks up to 50 time(s) and lasts for 3 sec.
■ Activates when HP falls below 70%. Affects self and 2 ally unit(s) with the highest ATK (except caster).
Critical Damage ▲ 50.94% continuously.
Pirate's Sight
Passive
Cooldown: -
■ Activates when entering battle. Affects self and 2 ally unit(s) with the highest ATK (except caster).
Critical Rate ▲ 23.56% for 30 sec.
Sail Through the Tempest!
Active
Cooldown: 20s
■ Affects self and 2 ally unit(s) with the highest ATK (except caster).
Max HP ▲ 86.2% of the caster's Max HP without restoring HP, lasts for 7 sec.
Critical Damage ▲ 25.19% for 7 sec.
■ Affects the target(s) afflicted with Sea Breeze.
Storm: Deals 4.52% of final ATK as damage. Mirrors the stack count of Sea Breeze every 1 sec for 7 sec.

Review
As a PVE buffer, she’s outclassed by current meta buffers, which is fine. But her use case does not end here. She has a niche to support Vesti: Tactical Upgrade in PVP (Just put her in the team in slot 1 and pray that Vesti can defeat enemies before they burst).
Pretty good crit buffers (both crit rate and damage).
She looks like, uhm, someone we can’t name to avoid copyright issues.
Has a good niche in PVP.
Besides her niche, she falls off meta completely.
Drunkyard (keep the rating at 12+ can ye? Ay ay).
Investment Tips
Increases Base DEF stats, no rerolling needed
PVE Priority
2/10
PVE Comment
Not used anymore but used to be a Max HP buffer for Max HP-characters. Scales with base HP stat.
PVP Priority
1/10
PVP Comment
Can be used to buff Max HP-characters but mainly used for S2's Critical Rate.

Resilience Cube

Bastion Cube

Assault Cube

Vigor Cube

Tempering Cube

Endurance Cube
Assault Cube helps SMG wielders to actually hit something past Near range. While the Resilience Cube is a generic DPS increase (but it's better in scenarios when you fight stuff only in Near range as there Hit Rate isn't that useful).
Teams
Teams for Mast aren't available yet. They will be added soon.