Kaervek, the Spiteful (M21)

Legendary Creature — Human Warlock

Other creatures get -1/-1.

3/2

Daarken
358/274
uuid: 548ca45b-5cdf-54f4-90da-bc018fd386ba

2020-06-23:
Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to creatures may become lethal if Kaervek enters the battlefield during that turn.
2020-06-23:
If you control more than one Kaervek, each will give each other creature -1/-1. If these effects cause a creature’s toughness to become less than or equal to 0 or the amount of damage marked on it, those creatures die at the same time that the “legend rule” remove your excess Kaerveks.