Elven Defense

Until end of turn, Elf creatures you control have
"{t}: This creature deals damage equal to its
power to target creature with flying." They also
have vigilance until end of turn if {w}{w} was spent
to cast this spell, and/or reach until end of turn
if {g}{g} was spent to cast this spell.
Feed the Tribe {2} (You pay an additional {2} as
you cast this spell. If you do, put a +1/+1 counter on
each Elf creature yon control.)