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Cornerstone profile was last updated on 12/July/2026.
To learn more about Cornerstone check the sections below. Use the tabs to quickly switch to the kind of information you're looking for.
Profile
Cornerstone was released during the 3.8 patch in the CN version of the game. We translated Cornerstone skills ourselves, as such, there's a chance of localization errors. We will add the official translations as soon as they will be released. Please contact us directly to report any errors.
Self-counter, enters [Delivery Process] status for 1 round.
Delivery Process:
While active, [Eligibility Assessment] DMG reduction is increased, capped at (Cornerstone's ATK at battle start * 160%). After the enemy's round ends, Cornerstone releases [Delivery Feedback] to attack. [Inspection Process] does not trigger this round. Not affected by [Control] on release. Stacks duration when re-obtained, cannot be dispelled.
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[Attack]
1-target attack. Deals 200% Reality DMG. If in [Inspection Process] status, this attack additionally deals 200% Reality DMG and Critical DMG +40%. This attack counts as 1 riposte.
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[Attack]
1-target attack. Deals 300% Reality DMG. If in [Inspection Process] status, this attack additionally deals 200% Reality DMG and Critical DMG +60%. This attack counts as 1 riposte.
✦✦✦
[Attack]
1-target attack. Deals 500% Reality DMG. If in [Inspection Process] status, this attack additionally deals 200% Reality DMG and Critical DMG +100%. This attack counts as 1 riposte.
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[Counter]
Self-counter. Enters [Inspection Process] status for 2 rounds. Grants self 2 stacks of [Progressive Iteration] for 2 rounds.
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[Counter]
Self-counter. Enters [Inspection Process] status for 2 rounds. Grants self 3 stacks of [Progressive Iteration] for 2 rounds.
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[Counter]
Self-counter. Enters [Inspection Process] status for 2 rounds. Grants self 5 stacks of [Progressive Iteration] for 2 rounds.
Inspection Process:
After the enemy's round ends, Cornerstone releases [Inspection Feedback] to attack. Not affected by [Control] on release. Stacks duration when re-obtained, cannot be dispelled.
Inspection Feedback:
Mass attack. Deals 1000% Reality DMG to all enemies. Grants self 1 stack of [Design Revision], increases self Moxie by +1. Clears all [Trial and Error], and for every 1000 cleared, this attack additionally deals 100% Reality DMG. This attack counts as 1 riposte.
Progressive Iteration:
Riposte DMG Bonus +4%, Incantation Might +4% (stackable, up to 20 stacks; each stack has independent duration; cannot be dispelled).
While Cornerstone is on the field, all allies gain [Eligibility Assessment]. Cornerstone gains [Trial and Error]. Cornerstone's Max Moxie -1, and the Ultimate's Moxie Cost -1.
Every time an ally takes an extra action, Cornerstone grants self 1 stack of [Progressive Iteration] for 2 rounds. If it is a Riposte, grants 1 additional stack. For every 10 stacks of [Progressive Iteration] gained, Cornerstone grants self 1 stack of [Design Revision].
When entering battle, increases ATK by +5%.
Own Ultimate does not count toward the ally Spelldock limit. When entering battle, Cornerstone increases self Moxie by +2.
Overflowing Moxie is temporarily stored. At the end of the round, if self Moxie has remaining capacity, it is replenished (up to a maximum of 4 stored Moxie).
Eligibility Assessment:
When attacked, reduces DMG taken. Reduction capped at (Cornerstone's ATK at battle start * 80%). The reduced DMG amount is stored by Cornerstone as [Trial and Error].
Trial and Error:
Cap is (Cornerstone's ATK at battle start * 500%). When other allies execute a Riposte, adds Reality DMG equal to (Cornerstone's ATK * 100%), and increases that additional Reality DMG by 100% based on the current [Trial and Error] percentage. Additional DMG is dealt by Cornerstone. [Trial and Error] stops storing once capped, but [Eligibility Assessment] still reduces DMG.
Progressive Iteration:
Riposte DMG Bonus +4%, Incantation Might +4% (stackable, up to 20 stacks; each stack has independent duration; cannot be dispelled).
Design Revision:
Can be consumed by [Delivery Feedback] triggered by the Ultimate to enhance its effects (stackable up to 10 stacks; cannot be dispelled).
Cornerstone doesn't have an Euphoria update yet. If it will be released, we will add it here.
Lv. 1:
[As Things Are]: Reduces the number of [Progressive Iteration] stacks required to gain 1 stack of [Design Revision] to 8.
[Inspection Feedback]: [Delivery Feedback] Reality DMG increased to 4000%, and the condition to consume [Design Revision] reduced to 4.
[Figure-Ground Relationship]: [Inspection Feedback] Reality DMG increased to 2500%.
Lv. 2:
[Inspection Feedback]: [Delivery Feedback] additional Reality DMG dealt by consuming [Design Revision] increased to 2500%, Ultimate Might increased to 100%, Penetration Rate increased to 30%.
[Figure-Ground Relationship]: [Inspection Feedback] for every 1000 [Trial and Error] cleared, this attack additionally deals 250% Reality DMG, and [Design Revision] granted to self increased to 2 stacks.
[As Things Are]: Riposte DMG Bonus and Incantation Might per stack of [Progressive Iteration] increased to 5%.
Lv. 3:
[As Things Are]: [Trial and Error] Reality DMG added when other allies execute a riposte increased to Cornerstone's ATK * 200%, and the additional DMG increase based on current [Trial and Error] percentage of cap increased to 250%.
Lv. 4:
[As Things Are]: [Eligibility Assessment] DMG reduction effect increased to Cornerstone's ATK at battle start * 120%. [Trial and Error] storage cap increased to Cornerstone's ATK at battle start * 600%.
[Inspection Feedback]: During [Delivery Process], [Eligibility Assessment] DMG reduction effect increased to ATK at battle start * 240%.
Lv. 5:
[Inspection Feedback]: [Delivery Feedback] Reality DMG increased to 5000%. For every 1000 [Trial and Error] cleared, additional Reality DMG dealt increased to 250%.
[As Things Are]: Riposte DMG Bonus and Incantation Might per stack of [Progressive Iteration] increased to 6%, stack cap increased to 25.
Review
Cornerstone review isn't available yet. It will be added soon!
Cornerstone pros & cons aren't available yet. They will be added when the character is released.
Stats and Build
Cornerstone Resonance Pattern tips aren't available yet. They will be added soon!
Cornerstone Psychubes aren't available yet. They will be added soon!
Cornerstone stats aren't available yet. They will be added soon!
Synergy & Teams
Cornerstone teams aren't available yet. They will be added soon.
If you're looking for more team information, check our Team Database:
Cornerstone Synergy information aren't available yet. They will be added soon!
Lore
Cornerstone Lore information aren't available yet. They will be added soon!
