Sladonn, Bog Assassin

At the beginning of your upkeep, put an assassin counter on Sladonn, Bog Assassin.
Whenever a card enters your graveyard, you may exile it and remove an assassin counter from Sladonn, Bog Assassin. If you do, you draw a card and you may destroy target non-land permanent that shares a card type with the exiled card.