Ahote, Lost of Form

As an aditional cost to cast this card, exile a
creature from your library and pay mana equal to
its mana cost
Ahote, Lost of Form enters as a copy of a card
exiled with it except its name is Ahote, Lost of
Form and it gains echo. The echo cost is equal to
this card's mana cost.
If this card would leave play, put it in the
command zone instead