Elphaba, Wicked Witch

Flying, Hexproof
Whenever another Legendary Creature you
control dies, put it back on the battlefield tapped
as a Token Creature - Construct. If Elphaba,
Wicked Witch would be killed, sacrifice the
Token Creature instead.
{b}{t}: Search your deck for an instant or sorcery
spell and put it into your hand and shuffle your
deck.