Gwyndolin the Silent

Swap — Built 6★ damage flex — her A1 hits 3× with a 30%-per-hit chance to extend ALL debuffs, and her C.DMG scales off ACC. HH 8/10 CB; better spent on Hydra/DT, but she is the emergency extension body.

Swap — OUT of the main five 2026-08-19 (Paul's call) when Royal Guard took the burst seat — a trade of debuff glue for raw purple-bar damage, made with eyes open. Bring her back in two situations. (1) HARD MODE, always: Ayumi 4★ / HH 8/10 against Royal Guard's 3★ / 7/10, and Toxic Incineration punishes a comp with less debuff glue. (2) When the DoT clock rather than the purple bar is what's failing: her A1 hits 3× with a 30% chance each to extend ALL debuffs, every turn, which is what stretches Frozen Banshee's Poison Sensitivity across the 3-turn hole her unbooked A3 leaves — book Banshee's A3 and this reason fades. Her +60 ACC all-battles aura is the roster's largest, so she also comes back if the ACC gate starts eating debuffs. Her A2's Dec SPD is dead here (immune) but still delivers Leech + 50% Dec ACC. 6★.

ACC engine + glue (LEADER) — 6★. Aura re-verified verbatim on Ayumilove: 'Increases Ally ACC in All Battles by 60' — the cheapest bridge to the 225 stage-20 wall, and the reason she leads over the two ATK auras this five now has on record (Katonn +33%, Keberon +28%) and over Morrigaine's +19% SPD. A3 Plumedart grants all allies 50% Inc ACC BEFORE it attacks (CD 4); A2 is an AoE 30% Dec SPD + Leech at 75% whose 50% Dec ACC rider only lands on lings already carrying 2+ debuffs; A1 hits 3× with a 30% per-hit chance to extend every debuff on the target, burn included. Move the lead to Katonn only once gear clears 225 ACC without her.

Swap — Built 6★, HH 9/10 — A1 50% extend-ALL-debuffs + AoE Dec SPD/Dec ACC/Leech + A3 Inc ACC. Direct-damage nuker: her hits DO trigger thresholds, so slot her only with Dec ATK up.

Swap — Former Dec ACC seat-holder, demoted by the 2026-07 audit. Both sources rate her a tier below Morrigaine here (HH 6/10, Ayumi 3★), her Dec ACC only lands on targets already carrying 2+ debuffs, and her ATK%/C.RATE/C.DMG build makes her the champion Ruinous Swath hands the longest Ironbrand to. Still worth fielding for her +60 ACC all-battles aura if debuffs are whiffing — but disable A3 Plumedart, its Inc ACC on all allies feeds the boss TM. 6★

Leader aura + Dec SPD / Leech / Inc ACC engine — 6★ — LEADER: +60 Ally ACC in ALL battles retires most of the ACC ≈ boss RES + 25 tax the whole build is organised around. HH 9/10 for Chimera, re-verified this audit and joint-highest owned alongside Shu-Zhen and Fahrakin. A2 75% for 30% Dec SPD + Leech (two survival debuffs from one skill) plus 50% Dec ACC on 2+-debuff targets; A3 pre-casts 50% Inc ACC on all allies, which alone satisfies the 'place N unique debuffs under Inc ACC' trial family AND keeps the team buffed against Transfixing Presence; A1 hits 3× with 30% each to extend ALL debuffs on the target — the real extension engine against a boss that wipes the board on every metamorph. Her own C.DMG rises 1% per 10 ACC, so her aura arms her too, and that high C.DMG keeps her Ram-proof.

Damage cornerstone / debuff glue / ACC engine (leader) — 6★. Leader aura +60 ACC in all battles (beats Ostrox's +40; only one aura is live). A2 AoE 30% Dec SPD + Leech (75%→100% booked, CD 4→3) with 50% Dec ACC on 2+-debuff targets; A3 pre-casts 50% Inc ACC on all allies (CD 4→3 booked) and steals Block Debuffs off the heads — this, not Ostrox, is the team's Increase ACC source. Passive: +1% C.DMG per 10 ACC and an extra turn every 3 skills, so the ACC wall double-pays.

LEADER — ACC aura + debuff extension — Must sit in the LEAD slot: only the leader's aura is active, and her +60 ACC all-battles aura is what pays the tower's accuracy tax. A1 hits 3× and each hit extends every debuff; A2 AoE Dec SPD + Leech. Needs no tomes to do this job.