Here's my Chaos Gym deck. I can easily stall my opponent until I get the Trainers I need so I can play Chaos Gym afterwards. Chaos Gym (and other cards) protect my Pokemon from ER/SERs, and they can work better than Slowking, in some cases! I made it fast, yet able to stall Trainers during most of the game. Here it is: 3 Rocket's Zapdos 3 Sneasel 3 Cleffa 2 Grimer 2 Muk 4 Computer Search 4 Copycat 4 Erika 3 Rocket's Sneak Attack 3 Impostor Oak's Revenge 3 Lass 3 Chaos Gym 3 Gold Berry 3 Focus Band 2 Gust of Wind 7 Lightning Energy 4 Darkness Energy 2 Rainbow Energy 2 Warp Energy It looks simple, but you have to play it just right, believe me!