Hades, God of the Dead

Persist

At the beginning of your end step, you may put creatures with total power X+5 or less from your graveyard to the battlefield, where X is the number of +1/+1 counters on Hades, God of the Dead. If you do,
put a +1/+1 counter on all creatures you control.

If a creature you control has at least two +1/+1 counters on it, you may remove all counters and any enchantments from that creature. Until end of turn, it has hexproof and can't be blocked.