Flying (This creature can't be blocked except by creatures with flying or reach.), vigilance (Attacking doesn't cause this creature to tap.), deathtouch (Any amount of damage this deals to a creature is enough to destroy it.), lifelink (Damage dealt by the creature also causes its controller to gain that much life.)
At the beginning of your end step, proliferate (Choose any number of permanents and/or players, then give each another counter of each kind already there.).