Hand That Feeds is a common Creature — Mutant card from Duskmourn: House of Horror (DSK), collector number 139. Current market price: $0.09 (foil $0.11), TCGplayer market prices via Scryfall.
Delirium — Whenever this creature attacks while there are four or more card types among cards in your graveyard, it gets +2/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures.)