4th Degree

4th Degree (Japanese IVど Fourth Degree) is a very inaccurate Fire-type one-hit KO move introduced in Generation δ.

Generation δ
4th Degree inflicts damage equal to the target's current HP; since this is considered normal damage and not effect damage, it can be Countered by a foe using a Substitute to make the user faint instead. It has no effect on higher-level foes.