Gardevoir can run this.
[email protected] Scarf
Modest
252 spd/252sp.atk/6HP
HP Ice/Thunderbolt
HP Ice/Energy Ball
Psychic
Focus Blast
This set is a major pain, depending on the combination of moves. The Scarf with max speed (considering IVs being near max or max) will provide you with a boost over even Weavile, in which you can Focus Blast to oblivion, not counting Focus Sash or a miss.
[email protected] Sludge/Leftovers
Bold
252def/252HP/6sp.atk
Flamethrower
T-bolt
Will-O-Wisp
Pain Split
I think this set works as mentioned. Basically, this is a Heracross/Gyarados counter at its biggest aids. Will-O-Wisp Gyarados and cripple, and Flamethrower Heracross as it is unable to stack up too much damage. Pain split as needed.
I think if you run Dusknoir with Leftovers, you get back more HP. However, this I'm unsure on.
In my opinion, Lapras doesn't really seem to fit in with this team. It can be dropped for something like Starmie since not only can it use Rapid Spin, its sp.atk and speed make Garchomp (which is banned now) and dragons get out of there. Also, Tyranitar doesn't have any particular use on this team. The sandstorm hits ALL of your pokemon. Consider something else like Weavile or Gengar and lead with it.
You highly need something like a special wall. Blissey/Snorlax are the two best at that. (Only pick one or another option out there.)
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