Overview
Kazuha's burst creates a field that absorbs elements and swirls them. His ascension passively shares a portion of his EM to the active character. VV 4pc shreds 40% RES of the element swirled, always Swirl an element before DPS takes the field.
How to Play
Apply an element to enemies, then use Kazuha's skill or burst to Swirl and shred RES. Hold skill pulls enemies together. Tap skill is faster for quick Swirls. Build full EM, Kazuha rarely needs CRIT for support builds.
Optimal Rotation
Apply element (Bennett burst, Xiangling pyronado), Kazuha Skill (hold for grouping), Kazuha Burst, swap to DPS. In freeze teams: Ayaka/Kokomi apply Cryo/Hydro, Kazuha Swirl, Ayaka burst and attacks.
F2P Options
Iron Sting R5 is an excellent free EM weapon. Viridescent Venerer is the only artifact set that matters, farm it early. C0 Kazuha is one of the best characters in the game at base.
Common Mistakes
Swirling without an element applied wastes the RES shred. Building CRIT over EM on support Kazuha. Using tap skill when you need grouping, hold skill pulls enemies. Forgetting to burst before swapping, absorption adds extra Swirl damage.