Mighty formation

{g}: Target creature you control gains +1/+1 and vigilance until end of turn.
{g}{g}: Target creature you control gains +1/+1 vigilance and trample until end of turn.
{g}{g}{g}: Creatures you control gain +1/+1 vigilance and trample until end of turn.
{g}{g}{g}{g}{g}: Creatures you control gain +3/+3 viglance, trample and lifelink until end of turn.