Natsu, Unequivocal Badass

Whenever a creature deals damage to Natsu, Unequivocal Badass, exile that creature until he leaves the battlefield.
Natsu, Unequivocal Badass has all abilities of all creatures exiled with him.
Activated abilities of Natsu, Unequivocal Badass cost {0} to activate.
{ut}: Return a creature exiled with Natsu, Unequivocal Badass to the battlefield under its owner's control.