Master Tenzin

Vigilance, Reach
Airbending {2}
Remove an air counter from Tenzin: creatures
you control get +0/+2 until end of turn.
Remove two air counters from Tenzin: Tenzin
deals damage to target creature equal to the
number of attacking creatures.
Remove three air counters from Tenzin: Put a
+1/+1 counter on each creature you control.
Those creatures gain flying until end of turn.