Daan The Doctor

Lifelink, Vigilance. Whenever a nonland card would
be put into a graveyard from anywhere, you may
put a knowledge counter of its type on Daan. (For example: creature, sorcery, artifact...)

Remove three counters of the same type from Daan, choose one:
• Return a card of that type from any graveyard to your hand.
• Pay {2}: Counter target spell unless its controller pays {3}.