Prototype— 3/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)Flying (This creature can't be blocked except by creatures with flying or reach.)
At the beginning of combat on your turn, target creature you control gains your choice of flying (This creature can't be blocked except by creatures with flying or reach.), vigilance (Attacking doesn't cause this creature to tap.), or lifelink (Damage dealt by the creature also causes its controller to gain that much life.) until end of turn.