Tooth Collector
From Shadows over Innistrad set
Tooth Collector
Creature — Human Rogue
3/2
When this creature enters, target creature an opponent controls gets -1/-1 until end of turn.
Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, target creature that player controls gets -1/-1 until end of turn.