Three more cards have been leaked in a new commercial for XY11 - Steam Siege. They are Pokemon Ranger, Special Charge, and A dual type Galvantula! The Galvantula was too tough to read, but it is Lightning/Grass type. Here are the other two cards, and they're playable!
Pokemon Ranger – Trainer
Remove all effects of attacks from both players and all Pokemon.
You may play only 1 Supporter card during your turn (before your attack).
Special Charge – Trainer
Shuffle 2 Special Energy cards from your discard pile back into your deck.
You may play as many Item cards as you like during your turn (before your attack).
It looks like Pokemon Ranger will counter effects like Seismitoad's Quaking Punch and Jolteon's Flash Ray.