NO CONTESTBOUT 10 · VS Gerard Valkyrie
Byakuya fights the giant Gerard Valkyrie alongside the other captains and the Visored. Yhwach's Auswählen strips Gerard to a skeleton and ends the battle before anyone wins.
FILING NOTE
Files NC: Yhwach's Auswählen, an outside act, ends the battle. It shares the Tōshirō Hitsugaya CH. 680 row's cite.
NO CONTESTBOUT 02 · VS Byakuya Kuchiki, Tōshirō Hitsugaya, Kenpachi Zaraki & Renji Abarai
Across Wahrwelt, Gerard battles the Soul Reaper captains and lieutenants, repeatedly surviving decapitation, bisection, and freezing via The Miracle, until Yhwach's Auswählen strips his power and flesh to a skeleton before anyone wins.
FILING NOTE
Files NC because Yhwach's Auswählen, an outside intervention from the throne room, terminates the battle by stripping Gerard's power rather than any action of the combatants.