Krovikan Vampire

If a creature that Krovikan Vampire dealt damage to that turn dies in response to the triggered ability, that creature card will be put onto the battlefield. Note that an appropriate creature must have died prior to the beginning of the end step in order for the ability to trigger in the first place.

Whoever controls Krovikan Vampire when the ability triggers will return the applicable cards to the battlefield under their control. It doesn’t matter who controlled it at the time the damage was dealt.

If Krovikan Vampire isn’t on the battlefield at the beginning of the end step, its ability won’t trigger. No cards will be returned to the battlefield, even if Krovikan Vampire dealt damage to some creatures that died that turn.