Orpulous, Evolutionary Augur

Each creature you control that has a +1/+1 counter on it has hexproof.
Whenever a +1/+1 counter is placed on a permanent you control, you may sacrifice Orpulous, Evolutionary Augur. If you do, put a +1/+1 counter on each creature you control.
{2}{g}{u}, {t}: Put two +1/+1 counters on target creature with power 3 or less.