Grisly Wound

Grisly Wound is a Skill introduced in Fire Emblem Fates.

Fire Emblem Fates
After a battle with the user, the enemy takes damage equal to 20% of their Max HP. The effect of Grisly Wound cannot kill a unit and will leave them at 1 HP should the amount lost exceed their current HP. It is learned by both Wolfssegners and Nine-Tails at Level 15.

Trivia

 * Grisly Wound act as an improved version of Poison Strike, as it deals damage to enemies regardless of whoever attacks first.