Sky Captain

Nurture 2 (Tap any number of creatures
you control with total power 2 or more:
put a level counter on this creature. Nurture
only as a sorcery).
Level 1 - 2: 3/3, Flying, First Strike
Level 3+: 4/4, Flying, First Strike
When Sky Captain attacks, create a 1/1 white
Soldier creature token with flying.