Disciple of Perfection

When Disciple of Perfection enters the battlefield, you may sacrifice a creature. If you do, put a +1/+1 counter on each creature you control.
With the end of the world approaching, many thousands of the oppressed and needy flocked to Malacol, desperate for any form of salvation. Its new order of priests welcomed them with open arms, eager for new sacrifices for the perfect ones.