Magical Hats

Trap Card {0}(During your turn, you must first place
this card face down as an enchantment for {1}.
Cast it on a later turn for its Trap Card cost.)
Cast this card only when you are assigning blockers.
Choose 2 noncreature cards from your graveyard and
shuffle them face down together with 1 of your
untapped creatures.
Create 0/1 Magical Hat tokens on these cards.
Reveal all "Magical hat" cards after assigning blockers,
your creature reverts to its original card before combat.