Mirazune, Hushed Refrain

Deathtouch, Defender Commander Channel -- {W}{U}{B}{G}, Discard this card from the command zone: Until end of turn, whenever you activate the channel ability of a card, exile that card. At the beginning of your end step, return all cards exiled this way to your hand. Whenever Mirazune is put into a graveyard from anywhere other than the battlefield, you may pay 3 life. If you do, put it onto the battlefield under your control. Return it to the command zone at the beginning of the next end step. At the beginning of your end step, return up to one target card with a channel ability from your graveyard to your hand.