Kosozudamo, First to Be

When Kosozudamo, First to Be enters the
battlefield search your library for an Avatar,
reveal it and put it into your hand
{5}: Exile Kosozudamo and another Avatar you
control and return Kosozudamo the the
battlefield tapped with the text of the other
exiled card on Kosozudamo, First to Be. Activate
this ability once per turn.