Could you be more specific when it uses the triggered ability? Is it supposed to trigger the turn before it unfreezes or the same turn it unfreezes? Either way, you should change the text of the second sentence to read, "deals 2 damage to all creatures you control. Damaged creatures might freeze." This way it will deal the damage to your opponent's creatures and not to yours, because when it says "your opponent" after you give this to your opponent, that means you.