Lernean Hydra

Deathtouch
Lernean Hydra enters the battlefield with X
+1/+1 counters on it.
Whenever Lernean Hydra is dealt damage, put
that many +1/+1 counters on it.
When Herakles or creatures equipped with
Herakles' bow or Herakles' club deals damage to Lernean Hydra, it does not gain any counters
from damage dealt that way.