Ash of War: Seppuku

Verified facts

This Ash of War grants an armament the Blood affinity and the following skill:

"Seppuku: A forbidden technique used by swordsmen from the Land of Reeds. Plunge the blade into your stomach to stain it with blood. Increases attack power and improves ability to inflict blood loss."

Usable on swords as well as polearms capable of thrusting (small and colossal weapons excepted).