Chaemar, Alpha of the Packs

Chaemar, Alpha of the Packs, costs X less to cast,
where X is the number of werewolves you control.
When Chaemar, Alpha of the Packs enters the
battlefield, put two +1/+1 counters on each
creature you control.
{w}: Creatures you control gain vigilance until end
of turn.
{g}: Creatures you control gain trample until end
of turn.