Patchwork Beastie

Delirium — This creature can't attack or block unless there are four or more card types among cards in your graveyard. At the beginning of your upkeep, you may mill a card. (You may put the top card of your library into your graveyard.)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6og47xbk1vpb1hgy0a4791.