Did you just get sweeped?
This is a team based off a Metagross sweep but is not made around it. It has other sweepers and other that take out Meta's counters.

Jirachi@ Choice Scarf
Ablility:Serence Grace
EVs:80HP/252Atk/176 Spd
Jolly nature(+Spe,-SAtk)
-Trick
This is for bulky, slow leads such as Bronzong, Metagross, and Swampert
-Stealth Rock
Almost every lead needs this...
-U-turn
To escape Magnezone after I tricked my scarf
-Iron head
Alright, the reason I use jirachi is this. Would u like a lead that can faint the other lead with out the other lead doing any thing 60% of the time?
Serene Grace is the best ability IMO. This will take care of almost all leads, though this lead is luck based. The best lead I have ever used.

Salamence @ Life Orb
Ability: Intimidate
EVs: 232Atk/252Spd/24 SAtk
Naughty nature (+Atk, -SDef)
-Outrage
Best physical dragon type move ever, but I get revenge killed a lot when I'm stuck on it
-Earthquake
For those steels that resist Outrage
-Dragon Dance
The main part of this set, I can get a free Dragon Dance on the switch if Jirachi tricked a scarf on earthquake.
-Fire Blast
Skarmory, Scizor and Forretress are just soooo evil...
This has a nice defensive combo with Metagross and Jirachi. They cover each others weaknesses perfectly. Sometimes I dont get to sweep with Metagross and sweep with him.

Latias@Choice Scarf
Nature: Timid (+Spe,-Atk)
EVs: 82Hp/176 Speed/252 SpA
-Draco Meteor
To kill the evil DD Mence
-Thunderbolt
To hit bulky waters
-Surf
Coverage with dragon only resisted by Empoleon
-Trick
To cripple walls
This is a sweeper, given a few chances to CM, that can't be taken down by special attacks. This was actually supposed to be a special wall. I didn't like Blissey because it can't really do anything.

Raikou @ Leftovers
Timid Nature(+Spe,-Atk)
Ev's: 68 HP / 116 SpA / 72 SpD / 252 Spe
-Thunderbolt
STAB for awesomeness
-Calm Mind
Boost My special attack and my special defense until the opponents special attacks are under that magic 25%
-Substitute
Blocks status
-Shadow Ball
Nice coverage and to hit rotom-a super effectively
I tested this after Futility suggested it. This is just awesome, coming in right in Rotom's face and subbing as it WoW's and then I just as it tries to break my sub with Shadow Ball, than WHAM! Shadow Ball ko's and sweeps his team:)

Heatran @ Choice Scarf
Rash Nature(+SAtk,-SDef)
EV's: 4 HP/ 252 SAtk/ 252 Spe
-Overheat/Flamethrower
STAB for awesomeness:)
-Earth Power
Coverage with Fire
-Explosion
To blow up the nurse
-Dragon Pulse
Dragons...Are evil...
The best revenge killer ever. Revenges a lot of threats to my team such as Mamoswine and other random stuff like Celebi, Magnezone(Can't trap me na na na na na na O YA!)and TTar. Testing Overheat and it seems to be better than Flamethrower. I don't know which to use.

Metagross@Leftovers
Ability: Clear Body
EVs:112HP/252Atk/12Def/132Spe
Adamant nature(+Atk,-SAtk)
-Meteor Mash
STAB move that has a chance to raise Atk
-Earthquake
To Do damage to the fire types and the steel types.
-Ice Punch
Hurts Celebi and Dragons a lot
-Agility
Speed up and sweep
Your basic Agliligross. I sweep late-game when I know the other team. Hopefully I know if they have any counters.
That's my team. Please Rate my team and give me suggestions for changes. My lead is Jirachi and will stay jirachi FOREVER.