Arceus @ Silk Scarf
Ability: Multitype
Nature: Adamant
Ev's: 92 Hp / 252 Atk / 164 Spe
-Extremespeed
-Shadow Claw
-Earthquake
-Swords Dance
Technically, this is the first pokemon in my party, but that doesn't make it a lead because people usually shift around their pokemon when they see this guy. Arceus is depicted as the Alpha pokemon, and there is no doubt in my mind that it deserves this title. With an Adamant nature, Arceus reaches a lovely attack stat of 372, which is fairly nice for a pokemon with Arceus's bulk. The goal here is to set up a Swords Dance and begin a sweep immediately. 92 Hp Ev's give it 404 health, which is the highest amount of Hp any base 100 can have, and the rest is dumped into speed, because 120 base speed is also fairly attractive. Oh who am I kidding, this guy is 3HKO'd by the standard Groudon's Earthquake, letting it set up +4 and take out usually 94% of its health at a minimum, usually scoring me a KO, as well as letting my Kyogre do its job right. It also acts as a somewhat decent check to Ferrothorn, setting up +4 Swords Dance and OHKOing with Earthquake, while Ferrothorn can only really paralyze me or try and stall me with Leech Seed. If I see a Speed Boost Blaziken come out of the gate, I usually switch to Sableye to nail it with Hi-Jump Kick recoil, then into Kyogre for the Blaze Kick, and let Arceus take a Blaze Kick to KO with Extremespeed.
Kyogre @ Life Orb
Nature: Timid
Ability: Drizzle
Ev's: 252 Sp. Atk / 252 Spe / 4 SpD
-Surf
-Ice Beam
-Thunder
-Calm Mind
Kyogre brings in the rain, which does benefit Manaphy and itself mainly, and Shaymin and Genesect slightly. The good thing about this is I did not build my team solely around rain, but the pokemon I have benefit from rain, so it isn't a make-it or break-it deal with Drizzle. It's an offensive Calm Mind Kyogre, there really isn't much else to say. I set up a Calm Mind on some special attacker, and spam Surf, with the occasional Ice Beam and Thunder for other Kyogre. I choose Surf over Hydro Pump because Hydro Pump misses at all the wrong times, and I got tired of it. Hax ftl.
Manaphy @ Leftovers
Ability: Hydration
Nature: Timid
Ev's: 252 Hp / 252 Spe / 4 SpD
-Acid Armor
-Calm Mind
-Rest
-Surf
Firstly, look at this set and clench your teeth, because it will make you ragequit. The set looks weird at first because not many people run Acid Armor on anything, but I assure you it works. I usually come in on a physical attacker and pull off an Acid Armor, then Rest, then two Acid Armors, then Rest, two Calm Minds, Rest, etc... And the most amusing part is Manaphy's ability, Hydration, cures it of all major status conditions in the rain. So every time I use Rest, it is basically a full heal. Like Snorlax in generation four, Manaphy usually performs a slow, but inevitable sweep. No, I will not consider Tail Glow. I know it boosts Manaphy's attack by 3, but I really need a bulky sweeper that can take a hit and heal it off easily.
Shaymin-S @ Choice Scarf
Ability: Serene Grace
Nature: Modest
Ev's: 252 Sp. Atk / 252 Spe / 4 Hp
-Seed Flare
-Hidden Power [Ice]
-Earth Power
-Air Slash
I was kind of hoping Tropious would turn out as nicely as Shaymin did, but a guy can dream, right? Yes, this would be my main revenge killer, outspeeding Scarf Palkia, Scarf Kyogre, Mewtwo, Deoxys-A, and a lot of other things. I prefer Modest over Timid for some reason, because when I switched I found out I really outsped the same things that I used to. Seed Flare lets it take on the likes of Groudon and Kyogre, while Hidden Power [Ice] lets it attempt to take on a few dragons who lurk in Ubers, Earth Power is used for Dialga mainly, but also any other steel types that think they can endure Ubers, and Air Slash is mostly for pokemon I know run a Focus Sash, as it has a 60% flinch rate and usually 2HKO's anything Seed Flare would take off 90%. The nice thing about this set is the only things that can really beat it are Arceus and Mewtwo, everything else is heavily dented or KO'd before it gets a chance to even attack.
Genesect @ Choice Scarf
Nature: Hasty
Ability: Download
Ev's: 252 Spe / 128 Atk / 128 Sp. Atk
-U Turn
-Ice Beam
-Thunder
-Bug Buzz
Genesect is kind of a pivot. Once you lose your Genesect, you have a harder time scaring off the opponents pokemon, and they set up easier. The things that make Genesect so scary are its ability and its diversity. Genesect gets a boost in Atk or Sp. Atk every time it comes out of its pokeball, and since its Atk and Sp. Atk are the same base value, it's a win win situation no matter how you look at it. U-Turn is what I do whenever I lose a pokemon and don't want to risk Shayminn, it also does some damage to any Water Spout Kyogre, letting me switch something in safely. Thunder and Ice Beam form a semi BoltBeam combo, giving it scary coverage, and Bug Buzz is my main special STAB move.
Sableye @ Leftovers
Ability: Prankster
Nature: Calm
Ev's: 252 Hp / 252 Def / 4 SpD
-Will-O-Wisp
-Recover
-Substitute
-Night Shade
Thank you all for bearing with me this far, but this is the pokemon I'm sure you were wondering about. Sableye is one of those pokemon you just need to face in order to actually understand how frustrating it can be. It has this ability called Prankster, giving all non damage moves +1 Priority. This will check EVERY non fire type physical attacker period. It also is the perfect Arceus check, as it is immune to Extremespeed and can throw out a +1 Will-O-Wisp before it is hit with anything, then spam Substitute and Recover. When burned, most attacks do 22% damage to Sableye, no matter who it is coming from. Substitute and Recover combined with Will-O-Wisp is pure evil, as I can just spam Substitute until something happens to where my opponent doesn't damage me, then I can Recover or Night Shade to reduce even more health. All and all, Sableye has won games before. It also acts as a nice lead Darkrai check, as it Substitutes and Will-O-Wisp to break any Focus Sash and avoid being put to sleep.