Arenxus, Wolf Summoner

Grouping, First Strike
When Arenxus, Summoner of Wolves Enters Play:
Create X 2/2 Black Wolf Tokens.
{t}: Create a 2/2 White Wolf Token in case you
Control more Black Wolves than White Wolves.
{0}, Sacrifice a Wolf you Control: Arenxus,
Summoner of Wolves Deals Damage equal
to that Wolf's Power to Target Player.