Xavea, Guardian of the Wing

Flying
Whenever you cast an instant or sorcery spell,
create a 1/1 blue Bird creature token with flying,
then if you control 10 or more creatures with
flying, copy it. You may choose new targets for
the copy.
{3}, Sacrifice 3 token birds: You may cast target instant or sorcery from your graveyard this turn.
Then exile it.