Savage Blow

Savage Blow is a skill first appearing in Fire Emblem Fates learned by level 5 or higher Malig Knights, and in Fire Emblem Heroes as a type C passive skill (known as Savage Blow 1, Savage Blow 2, and Savage Blow 3).

Overview
In Fates, any rival unit within two spaces will lose 20% HP after the battle from the user who started it, but won't reduce HP below 1.

In Heroes, the higher the skill tier is, the more damage will be dealt. It can be learned without inheriting by Camilla, Leo, and Narcian.