Ninja Gaiden

You enter a death state, becoming immune to pain and mental control, while your HP is reduced to 1. You unleash a devastating 5-stage attack, striking once per round with Sekizō, dealing 3d10 force damage that ignores resistance. In the final round, you teleport to your target and unleash Night Guy, dealing 12d10 unavoidable damage, but suffer double that damage after the hit. You die at the end of the spell unless healed or resurrected immediately.