Hazcox the Awakener

Delirium - Hazcox the Awakener has shroud as
long as there are four or more card types among
cards in your graveyard.
Exile two cards with different card types from
your graveyard: Until end of turn, each card in
your graveyard that shared a card type with the
exiled cards gains "You may play this card from
your graveyard."