Vigilance

Battalion — Whenever this creature and at least two other creatures attack, put a +1/+1 counter on this creature and your choice of a +1/+1 or shield counter on another target creature you control.

{4}{G}{W}: Modified creatures you control gain +X/+X until end of turn, where X is the number of modified creatures you control. Activate only as a sorcery.

Partner with a hero