Hercules, Glory of Hera

Hero (Whenever this creature damages another
player or creature, it gains a Hero Counter (+1/+0))
Vigilance, First Strike
If Hercules, Glory of Hera has 3 or more Hero Counters on him, he gains Immortality.
"...I imitate Herakles, and emulate Perseus, and
follow in the footsteps of Dionysos..."