Ravenous Hydraling

Ravenous Hydraling enters the battlefield with X
+1/+1 counters on it.
If damage would be dealt to Ravenous Hydraling, prevent that damage. Then remove a +1/+1
counter from Ravenous Hatchling.
Evict — {x}{x}{g}{g}: Put X +1/+1 counters on Ravenous Hydraling. X can't be greater than the
number of cards you own in exile.