Yi Xuan

Yi Xuan's signature. Massive base ATK, HP%, and passive CRIT Rate, plus an EX Special buff that boosts both Ether DMG and Ether Sheer DMG on EX Specials and Ultimates — perfectly complements her kit.

Clear runner-up with a large gap behind it. A single EX Special: Ink Manifestation combo maxes stacks. HP% mainstat, solid DMG Bonus, and CRIT Rate that relieves substat pressure.

Battle pass option. Sheer Force buff from Chain Attacks and Ultimates is especially strong on Yi Xuan since she scales with HP and deals damage primarily during Stun. Barely outperforms Puzzle Sphere and only recommended on her due to its HP secondary stat.

Excellent craftable option. CRIT DMG increase on EX Specials plus bonus EX Special DMG against sub-50% HP enemies. Performance drops in Deadly Assault due to the HP condition, but perfectly viable for all Rupture content.

Only the HP% mainstat is useful — Yi Xuan can't trigger the CRIT Rate on HP loss (her Ultimate heals, not hurts), and the Fire DMG Bonus is wasted. Functional at any refinement since the effect is irrelevant, but Puzzle Sphere performs better overall.