Blue Diamond, Desolate

Protection from blue and green.
Flash, Defender, Haste, Reach, Ward {4}.
Blue Diamond does not untap on your untap
step. On any player's end step, you may return
target card from your graveyard to the top of
your library. If you do, untap Blue Diamond.
{x},{t}: Add X plus 1 {u} or {g} in any combination.
{u},{t}: Return target creature to its owner's hand.
Kicker:{u}: Counter target spell instead.