Obsessive Skinner
From Duskmourn: House of Horror Commander set
Obsessive Skinner
Creature — Human Rogue
1/1
When this creature enters, put a +1/+1 counter on target creature.
Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, put a +1/+1 counter on target creature.