I think it may be extremely gimmicky, but I think zoroark could be a champ at running a mixed set. Put ninetales in as your second slotter or any other fire type pokemon, and switch this thing out after a water pokemon killed your last poke. use swords dance, make your hold item absorb bulb, and instantly you have a +2 attack, +1 sp A sweeper.
Zoroark
Hasty- 252 speed, 192 special attack, 64 attack
absorb bulb
swords dance
sucker punch
grass knot
flamethrower
sucker punch is zoroarks priority move , but can be replaced by night slash for stab. grass knot takes out the water pokemon you were attempting to kill, and flamethrower makes good coverage and has increased power from ninetales if you switched him in.
other notable moves for him are: night slash, night daze, uturn, shadow ball, shadow claw. an all-special set like the one on the original post would work too, exchange swords dance for nasty plot, but keep absorb bulb as your item. then you have a +3 zoroark sweep, which could be devastating.