Cho-Manno, Exemplar

Flash
When Cho-Manno, Exemplar enters the
battlefield, choose a color. Creatures you control
gain protection from the chosen color until
end of turn.
Whenever Cho-Manno, Exemplar becomes the
target of a spell or ability, exile him, then return
him to the battlefield transformed under his
owner's control.
{u},{t}: Return target creature to its owner's hand.
Draw a card.