Vin, Heir of the Survivor

Flying, Vigilance, Ward {2}

Whenever another creature you control dies, you create a 1/1 white Skaa Soldier creature token, whenever another creature an oppenent controls dies, create a 0/1 black Skaa Thief creature token

Vin, Heir of the Survivor gets +X/+0 , where X is the number of Skaa creatures you control.