His speed is too high, you cannot outspeed him. His Sp. attack is too high, you are going to get Koed with 1 hit almost guaranteed. And when you think it cannot get cheaper he has an attack called destiny bond.
So this is the situation,
I enter with politoed, he enters with gengar. He uses thunderbolt, oh wait...I'm not killed, good, I use phsychic on him, he does get killed, but wait...he has a focus sash, 1 hp left. Uses thunderbolt again. K. Bye politoed.
I send in Zapdos (it was zapdos but could've been anything it doesn't really matter). He uses destiny bond.
Two for one. Ridiculous.
Maybe I'm missing something but what the hell are you supposed to do against something like this?
"You stand before the final dimension, and I'm the darkness of eternity" 4313-1007-7697