Rotary Thopter

Flying
Augment 3: {1} (Whenever this permanent enters the battlefield you may pay {1} up to three times, if you do, choose one for each time you paid the augment cost - This permanent enters the battlefield with a +1/+1 counter on it; or gains vigilance; or flying; or lifelink; or first strike; or prowess.)
Rotary Thopter can block only creatures with flying.