ATK Charm I
Boosts Attack by +3%. The smallest percentages of the five lines. Attack scales differently from HP in this game, and the Charm values say so plainly. Charms are equipped on Koo, and the five lines — HP, ATK, DEF, Skill and Critical — each run I, II and III. Each charm also carries one rolled mod, named and levelled, which is why two charms of the same tier are not the same item.

Transcribed from the published Fextralife and Game8 stat tables
- Character
- Koo
- Category
- Charm
- Attack
- Attack +3%
- Role
- Attack +3%
- Applies to
- 17 September 2026 update
When to use it
Tier I of 3 on the Attack line, at +3%, against +7% at the top. Worth knowing before you spend anything upgrading one: the gap between tiers here is published and the acquisition is not, so plan around the ceiling rather than the step — and the mod each one rolls is a second axis nobody can plan at all.
Where it sits in the gear catalogue
- The three Attack charms run +3%, +5% and +7%, and this is rung 1 of 3: ATK Charm II and ATK Charm III are the same effect at a different size.
- Charm percentages are not comparable across stats, which is the trap this ladder sets. The top rungs are Max HP +70%, Attack +7%, Defense +70%, Skill Power +20%, Critical Rate +8%, so a "+70%" and a "+8%" are ceilings on different quantities rather than one being nine times the other.
Sources for this page
- Fextralife wiki — Charms — Competitor claim, read 2026-08-06, and the source that requires this site to correct itself.
What this source gets right, where its transcription is unreliable and what this site corrects is set out in full on the Gear hub.
The system this belongs to
