Haliax, Thousand-Faces

Haliax, Thousand-Faces enters the battlefield
under the control of an opponent of your choice.
Whenever you draw a card, reveal it. If you would
discard a card, the player who cast this card may
choose one of your revealed cards to be discarded
instead. Whenever you discard a card, the player
who cast this card may draw a card.
If Haliax, Thousand-Faces leaves the battlefield,
shuffle it in its owner's library.