When Covetous Castaway dies, mill three cards. (Put the top three cards of your library into your graveyard.)

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

+1: Whenever one or more creatures you control deal combat damage to a player this turn, draw a card, then discard a card.

−2: Create a 2/2 blue Illusion creature token with "When this creature becomes the target of a spell, sacrifice it."

−5: Create two tokens that are copies of Jace, Cunning Castaway, except they're not legendary.