
Metagross @ Life Orb
Ability: Clear Body
EVs: 252 HP / 96 Atk / 160 SDef
Adamant Nature (+Atk, -SAtk)
- Stealth Rock
- Meteor Mash
- Pursuit
- Earthquake
Stealth Rock setup, then raises Attack and sweeps with Meteor Mash STAB. Pursuit is mainly used against the Eons when they're Choice-locked and scaring the away while doing some damage too. It also hits Celebi and Gengar for pretty good damage. Earthquake counters Jirachi, Tentacruel, and Heatran.

Blissey @ Leftovers
Ability: Natural Cure
EVs: 4 HP / 252 Def / 252 SDef
Calm Nature (+SDef, -Atk)
- Wish
- Protect
- Toxic
- Flamethrower
Utilizes massive HP and Special Defense to be a great special wall. Wish/Protect lets Blissey heal itself and stay alive that next turn. Toxic affects everything that isn't Poison or Steel, and is Blissey's main source of damage. Flamethrower hits Venusaur hard, and Scizor too, if it lasts long enough to hit Scizor.

Forretress @ Leftovers
Ability: Sturdy
EVs: 252 HP / 252 Def / 4 SDef
Relaxed Nature (+Def, -Spe)
- Rapid Spin
- Spikes
- Volt Switch
- Gyro Ball
Rapid Spin. That's about it. It's also got Spikes for a second entry hazard. It can use Volt Switch effectively in some scenarios. It can switch in for a frail teammate, wall a physical attack, then switch back in to the frail teammate to let them nail a hit on the opponent. It also takes advantage of its low Speed to use Gyro Ball for its main STAB.

Dragonite @ Lum Berry
Ability: Multiscale
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature (+Atk, -SAtk)
- Dragon Dance
- Outrage
- Extreme Speed
- Earthquake
This IS the Dragon Dance Dragonite set. Multiscale makes it a lot easier for Dragonite to get at least one boost in, so long as it doesn't step into an entry hazard. Outrage is Dragonite's main STAB move, and thanks to the Lum Berry, it can come out of an Outrage sweep almost completely unscathed. Extreme Speed helps Dragonite nail some fast revenge killers like Keldeo and Latios. Finally, Earthquake helps check some rain team counters, like Tentacruel and Jirachi.

Celebi @ Leftovers
Ability: Natural Cure
EVs: 252 HP / 192 SDef / 64 Spe
Calm Nature (+SDef, -Atk)
- Giga Drain
- Recover
- U-turn
- Perish Song
Celebi is another wall in the team, which kind of seems impractical now that I think about it. Giga Drain lets it damage the enemy while getting in a little bit of recovery. Recover works with Celebi's ability to make it really hard to kill. U-turn lets it get out without taking damage from Pursuit, and Perish Song counters sweepers that like to set up, like CM Jirachi, CM Keldeo, etc., while also getting in a little damage.

Keldeo @ Expert Belt
Ability: Justified
EVs: 252 SAtk / 4 SDef / 252 Spe
Timid Nature (+Spe, -Atk)
- Hydro Pump
- Secret Sword
- Hidden Power Bug
- Icy Wind
Keldeo in this set is an all-out special attacker. Hydro Pump is his Water STAB move and does major damage to a lot of his enemies. Secret Sword attacks special tanks like Tyranitar, Blissey, and Chansey. HP Bug hits Celebi for major damage, as well as the Eons, but to a lesser extent. Icy Wind hits the Eons and slows down fast opponents, such as Starmie and Tornadus.