Headdress of the First Shaman

At the start of your turn, choose one of the following and put it into play: 2 Fire / 1 Health Fire Elemental ally token, 2 Melee / 1 Health Earth Elemental ally token, 2 Nature / 1 Health Air Elemental ally token, or 2 Frost / 1 Health Water Elemental ally token. While you control a Fire , a Frost , a Melee , and a Nature ally, your hero has Assault 8.