Artifact Creature — Beast
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.)
At the beginning of your upkeep, you may mill a card. (You may put the top card of your library into your graveyard.)
