Other known variants
-30BlizzardFlip a coin. If heads, this attack does 10 damage to each of your opponent's Benched Pokémon. If tails, this attack does 10 damage to each of your own Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
Take AwayShuffle Erika's Dragonair and all cards attached to it into your deck. Then, your opponent shuffles his or her Active Pokémon and all cards attached to it into his or her deck.
If my opponent's N's Vanilluxe uses its "Blizzard" attack and there is a Battle Cage Stadium in play, would Benched Pokemon be protected from taking 10 damage each?
No. Doing damage is not an effect and is different from placing damage counters. Battle Cage only protects against placing damage counters, not damage done, even if that damage came from the attack text.
What happens if one of the players doesn't have a benched Pokemon when using Drifblim's "Take Away" attack?
There is no restriction on using the attack if there is no benched Pokemon. If a player has no Benched Pokemon, that player loses. If neither player has Benched Pokemon, then it is a tie and a game of Sudden Death must be played.