I'm not gonna make any super long descriptions.
Team at a glance:






In Depth:

Azelf @ Focus Sash
Jolly Nature
Evs: 6 Def 252 Spe 252 Atk
-Stealth Rock
-Zen Headbutt
-U-Turn
-Explosion
-Zen Headbutt
-U-Turn
-Explosion
I prefer this Azelf over the other lead Azelf anyday. Zen Headbutt can cause flinches, while U-Turn allows me to hit something and switch after Stealth Rocks is set up. 349 attack Explosion is no joke either, causing loads of damage to even Metagross and Jirachi.

Swampert @ Leftovers
Impish Nature
Evs: 252 HP 6 Atk 252 Def
-Yawn
-Roar
-Avalanche
-Earthquake
-Roar
-Avalanche
-Earthquake
A thing of beauty right here. Yawn, a phazing move of its own, + Roar, another phazer, is just annoying as hell. I Yawn, cause them to switch, only to hit them with a Roar, which racks up the SR damage. If I do this enough times, eventually the opponent will think I'm going to Roar after I Yawn, so I'll just attack instead, and their poke is now asleep. Then, when they switch the sleeping pokemon out, I hit them with a Roar. lolz.

Rotom-C @ Leftovers
Bold Nature
Evs: 252 Hp 252 Def 6 SpA
-Pain Split / Leaf Storm
-Thunder Wave
-Shadow Ball
-Thunderbolt
-Thunder Wave
-Shadow Ball
-Thunderbolt
My Electivire, Metagross and Scizor counter. I've tested out both Leaf Storm and Pain Split, and they both work very effectively. If I use Pain Split, I can bluff Leaf Storm on Swampert, causing him to switch out, giving me the chance to T-Wave something. Most people don't expect just plain old T-Wave, normally Discharge or Will-O-Wisp.

Heatran @ Leftovers
Timid Nature
Evs: 6 HP 252 SpA 252 Spe
-Substitute
-Toxic
-Fire Blast
-Earth Power
-Toxic
-Fire Blast
-Earth Power
Subtran. Works great against incoming Latias. This does damage to teams, because their Heatran counter is now vulnerable by either Toxic or I can switch to my own counter.

Latias @ Choice Scarf
Timid Nature
Evs: 6 HP 252 SpA 252 Spe
-Trick
-Thunderbolt
-Surf
-Dracometeor
-Thunderbolt
-Surf
-Dracometeor
Fears no Blissey. I usually keep the Scarf for myself until they reveal their special wall, then I can trick next time it comes out. Dracometeor rapes everything, but I still have to be on the watch for Pursuit Scizors. Thunderbolt for DD Gyaras :O

Scizor @ Life Orb
Adamant Nature
Evs: 232 HP 24 Def 252 Atk
-Swords Dance
-Bullet Punch
-Superpower
-Quick Attack
-Bullet Punch
-Superpower
-Quick Attack
Beast. This Scizor is rediculous. Bullet Punch can't OHKO Infernape, Starmie or Jolteon after a SD, but quick attack can which is why I keep it on here. Works much better than any other SD Scizor in my opinion. Superpower destroys anything that doesnt resist it, and Bullet Punch... well I'll just end it there.