Antumbra's Sword

An optional duel in the Sanctum of Absolution built around one counter: Blinding Flash cancels his attacks, and the pillar can bait him into position for a Blinding Flash finisher. The Triple Illusion Strike is the move to memorize — dodge it, do not trade with it — and Stab earns its slot by inflicting bleed for damage between windows. No drops, no learnable skill: this one exists as a pure test of whether you can weaponize the Flash-cancel mechanic under pressure. Preparation is about the Flash economy: Blinding Flash is the counter, the pillar is the setup, and Stab keeps damage flowing between windows, so enter with all three ready on your bar rather than respeccing mid-attempt. The Sanctum run itself is short; most failed attempts die to the Triple Illusion Strike, so budget your first few attempts purely for learning its tell before committing to damage.