http://pokemonshowdown.com/replay/nucurrent-56242046
That's a match I have just had. The guy with the Liepard team was pretty good, I think someone else on this thread had battled him already (I don't remember who, sorry)
I think I made some good plays during this match (thunder wave on Lopunny, switch toad into Whirlwind, etcetc). Anyways I lost. Assist had only 4-5 PPs left I guess, and the poison crippled my Seismitoad in the end. I agree with Lasagne21, the only way to stop this Liepard is using a faster priority user or outspeed Liepard on the switch. That's not simple anyway, as I can't think of a SR setter faster than Liepard, maybe Swift Swim Seismitoad under rain is the only one (turn 36)
That's not the first time I have seen this team on the ladder, but nobody knew how to use this team efficiently like this guy did.
If I get the reqs for the vote, I'll most likely vote to ban Prankster+Assist (I don't want to say again all the reasons, it's the 11th page of the thread, I think people understood them)