Erika's Dragonair [Gym Heroes]

[3] Blizzard (30)
Flip a coin. If heads, this attack does 10 damage to each of your opponent's Benched Pokemon. If tails, this attack does 10 damage to each of your own Benched Pokemon. (Don't apply Weakness and Resistance for Benched Pokemon.)

[4] Take Away
Shuffle Erika's Dragonair and all cards attached to it into your deck. Then, your opponent shuffles his or her Active Pokemon and all cards attached to it into his or her deck.