Xeel, Body Thief

Changeling (This card is every creature type at all times)
{4}{b}{b}{u}{t}: Exile target creature, Xeel, Body Thief gains the exiled creatures Ability, but not keywords (Trample Vigilance Ect.) This ability stays with Xeel, Body Thief wherever it goes
Whenever Xeel, Body Thief leaves the battlefield, return all creatures exiled by this creature to the battlefield under thier opponents control