Hydra Constrictor

Hydra Constrictor enters the battlefield with X +1/+1 counters on it.
When Hydra Constrictor enters the battlefield, exile any number of target creatures with total power less than its power until it leaves the battlefield.
"A hydra's heads often have different ideas about
what to do with prey. Some will try to eat you on the spot. Others will save you for later."