Pre-release data. All data is from the closed beta and community sources. It is incomplete and will change before and after launch.

Anima Codex
Handbook

Anima Skill Enhancement Items

Combat

Anima Skill Enhancement Items are optional purchases that can appear when you refresh the Gauntlet Store, so they aren't guaranteed every time. Buying one boosts the skill of the matching Anima; once applied, you can check the improved skill effect from that Anima's details screen.

Anima Skill Enhancement ItemsAnima Skill Enhancement Items

Confidence: unconfirmed · Source: the in-game Handbook (via the Fandom wiki). Pre-release; may change.