Tor'gar, The Dark Hydra

Vigilance, Menace, Double Strike
Whenever an opponent loses life, put that many
+1/+1 counters on this creature.
Magecraft - Whenever you cast or copy an
instant or sorcery spell, put a +1/+1 counter on
Tor'gar, The Dark Hydra. Then, you may have
Tor'gar, The Dark Hydra fight a creature you
don't control.