I also think you need to up the cost of the ability and card 2 damage and a chance to freeze every opponent creature is a very powerful ability, Arctic squid costs 3 to summon and 3 to freeze one creature.
Then it would be a useless card. Rain of fire deals 3 damage to everything isntantly for the cost of 7 fire quanta. This card takes the drawing turn and the 2 turns for the damage.
The damage is done while it still is frozen. I'm making the proper modifications, inclusing the destruction of the card after the damage.
Short review:
Way too complex.
think of it as a cheap timed ice bomb.
