Battle Cage
Prevent all damage counters from being placed on Benched Pokemon (both yours and your opponent's) by effects of attacks and Abilities from the opponent's Pokemon. (Damage from attacks is still taken.)
Card rule
You may play only 1 Stadium card during your turn. Put it next to the Active Spot, and discard it if another Stadium comes into play. A Stadium with the same name can't be played.
Phantasmal Flames