Zethkolo, Author of Demonics

Flying, Deathtouch, Lifelink
When Zethkolo, Author of Demonics attacks,
the defending player exiles a nonland permanent he or she controls.
When Zethkolo, Author of Demonics leaves the battlefield, put all permanents exiled by him
onto the battlefield under your control. Those permanents lose all abilities and become Zombies with a base power and toughness of 2/2.