It wouldn't be wrong to call this a Rain team - indeed, 3 of the Pokemon here use Swift Swim, and I usually try to set up Rain early on in the game. Still, it lacks many of the common Pokemon found on such teams, such as Gorebyss or Ludicolo - a decision which was originally based on just choosing Pokemon I liked, but eventually graduated to liking where each of these Pokemon ended up. A more common ideal would be bulky offense, as every Pokemon on the team runs HP EVs to some degree. I still wouldn't call it a dedicated Rain team, since I think it functions decently outside it, but either way, I've had a lot of fun with playing it so far, reaching about 1500 recently.
Team at a glance:
The Team
Seismitoad@Damp Rock
Trait: Swift Swim
EVs: 140 HP/252Sp. Atk/116 Speed
Modest Nature
- Rain Dance
- Hydro Pump
- Earth Power
- Stealth Rock
Serperior@Leftovers
Trait: Overgrow
Modest Nature
EVs: 252 HP, 4 Def, 252 Speed
- Giga Drain
- Calm Mind
- HP Rock
- Substitute
Beartic@Choice Band
Trait: Swift Swim
Adamant Nature
EVs: 196 HP, 252 Attack, 60 Speed
- Icicle Crash
- Stone Edge
- Night Slash
- Superpower
Beheeyem@Life Orb
Trait: Analytic
Modest Nature
EVs: 252HP, 252Sp. Atk, 4Sp. Def
- Psychic
- Thunderbolt
- Signal Beam
- Recover
Liepard@Leftovers
Trait: Prankster
Timid Nature
EVs: 252HP, 4 Sp. Atk, 252 Speed
- Encore
- Foul Play
- Snarl
- Thunder Wave
Mantine@Life Orb
Trait: Swift Swim
Timid Nature
EVs: 64 HP, 252 Sp. Atk, 192 Speed
- Rain Dance
- Hydro Pump
- Air Slash
- Ice Beam







Seismitoad@Damp Rock
Trait: Swift Swim
EVs: 140 HP/252Sp. Atk/116 Speed
Modest Nature
- Rain Dance
- Hydro Pump
- Earth Power
- Stealth Rock
While not my favourite froggy Pokemon (for alas, Poliwrath is in RU), Seismitoad has been pulling his giant toad weight decently and is my usual lead of choice, usually managing to get up rain or rocks thanks to his fat bulk, either sacrificing himself valiantly afterwards to pave the way for Mantine and Beartic, or to start releasing a torrent of water or mud. His very obvious achilles' heel is still Grass types, as I couldn't justify giving up Rocks for Sludge Wave just yet. I knew I wanted a bulky Rain setter that could also abuse it, and I picked Seismitoad over Carracosta because of the latter's slow speed and weaker Water STAB, and over Ludicolo because our favourite pineapple can't summon floating rocks.

Serperior@Leftovers
Trait: Overgrow
Modest Nature
EVs: 252 HP, 4 Def, 252 Speed
- Giga Drain
- Calm Mind
- HP Rock
- Substitute
Serperior to the rescue! While the grass snake isn't lauded for his offense, he's my go-to Pokemon to handle Alomomola as well as Amoonguss who lack Sludge Bomb. Serperior happily finds many opportunities to set up Calm Minds or Subs on switches, especially if an opponent switches in a Water type upon seeing Seismitoad set up Rain Dance. Serp even takes on Eggy decently, setting up Calm Minds quickly to staunch the pain of Psychic till he can Sub in safety. I've managed to get +4 or higher easily in several matches. A nice fat HP means stronger Subs and an easier time getting into Overgrow range, while blistering Speed allows him to set up Subs near unchallenged.

Beartic@Choice Band
Trait: Swift Swim
Adamant Nature
EVs: 196 HP, 252 Attack, 60 Speed
- Icicle Crash
- Stone Edge
- Night Slash
- Superpower
Sadly, my least used of my 3 Rain Abusers, which is a shame because polar bears are awesome. Beartic's angry attack stat soars to the havens with an Adamant nature and a Choice Band, crashing down in a barrage of ice. Unfortunately, polar bears seem to lumber around a bit even in the rain, as he only runs enough speed to outrun Raichu, anything else requiring too much effort away from his decent bulk. I've been finding Night Slash to be a bit superflous, rarely using it. And while Ice is a rocking STAB, the popularity of Emboar and Water-types means Beartic doesn't get as many chances to show it off as he'd like. He might have to go back to the Arctic to make way for another Pokemon, but hopefully not one that would compound a Grass weakness.

Beheeyem@Life Orb
Trait: Analytic
Modest Nature
EVs: 252HP, 252Sp. Atk, 4Sp. Def
- Psychic
- Thunderbolt
- Signal Beam
- Recover
Bzzt bzzt! Beheeyem is here to zap you with that monstrous 383 Sp. Atk backed up with a Life Orb and the Analytic powers of a little alien. Beheeyem packs serious power, and because he can function most powerfully when going second, why not dump the other EVs into HP, allowing him to tank weak hits like random Drain Punches aimed at Beartic, or survive a nasty hit at high health and turn the opponent into jerky afterwards with a powerful Psychic? Recover might seem an odd choice for a slow Pokemon using Life Orb, but occasionally Beheeyem runs into a Pokemon that can't really hurt it to the point of death - like Monferno, or something, allowing Beheeyem to recuperate valuable health and offset Life Orb recoil. I've also managed to sneak in a Recover as opponents fled at the sight of Beheeyem, getting him back up to speed in the blink of an eye. Powerful physical attacks still threaten him dearly though, especially pesky Dark-types like Absol and Skuntank if he can't hit them with Signal Beam on the switch.

Liepard@Leftovers
Trait: Prankster
Timid Nature
EVs: 252HP, 4 Sp. Atk, 252 Speed
- Encore
- Foul Play
- Snarl
- Thunder Wave
Sneaky Liepard is who I turn to in case I run into a troublesome fast opponent, or something with monstrous attack but is a lumbering slowpoke. Liepard is also the fastest Prankster in NU, allowing her to outpace Volbeat and Murkrow as well, though she can't exactly do much to the latter. She especially enjoys coming in to Musharna and rendering them useless, or coming in after Golurk stomps one of her teammates and swatting it down easily with Foul Play. Even Snarl has its uses, softening up a foe or two and making it even easier for Serperior or Seismitoad to set up. While I wish she was a bit more sturdier, and I've considered giving her a Sash once or twice, she's surprised me by taking a hit or two once.

Mantine@Life Orb
Trait: Swift Swim
Timid Nature
EVs: 64 HP, 252 Sp. Atk, 192 Speed
- Rain Dance
- Hydro Pump
- Air Slash
- Ice Beam
Mantine probably is in a race against Serperior to see who's been getting more kills so far. While not the most conventional Swift Swimmer, Mantine enjoys several benefits that few Pokemon gain. Firstly, Mantine scoffs at Ludicolo, who roadblocks many other Water-types. Secondly, Mantine's fanatastic range of offensive attacks means anything is going to be hurt hard by its attacks, and even with only 80 base Sp. Atk, a Rain boosted Life Orb'd STAB Hydro Pump is guaranteed to hurt. And unlike Swanna, Mantine actually has the bulk to take a hit or two, even renewing its own Rain for a while if necessary. Also, while Swanna has Hurricane, it can't Hydro Pump. :) Mantine has sliced through numerous Pokemon with ease thanks to its power and bulk, and it's always fun to see an opponent getting multiple Pokemon falling from a Mantine.
Weaknesses:
Cincinno: If the mouse is in the lead, Bullet Seed threatens to KO Seismitoad from the get-go. Her speed means very little on my team can outpace it unless it's in the rain, forcing me to sacrifice Liepard to Thunder Wave it before I can bring it down.
Sawsbuck: Perhaps more than Cincinno, the deer causes me a lot of trouble. Serperior can't keep taking its physical attacks, and while Mantine and Beheeyem could take it down, they'd take heavy damage in the process. Substitute Sawsbuck are a major pain for me.
Miltank: The giant cow is truly the queen of fatties, being extremely hard to take down and fast enough to outpace all but Serperior and Liepard outside of the rain. Only Beartic can deliver a truly strong hit, but that's not even a guaranteed KO.
Fast physical sweepers in general: With Liepard being the only one who can slow them down, seeing multiple Pokemon like that on the opponent's team, like Tauros, makes me aware it could be an uphill battle.
Hazards: Rocks chip away 25% of Beartic and Mantine's health, and Serperior and Beheeyem dislike Toxic Spikes.
Weaknesses:
Cincinno: If the mouse is in the lead, Bullet Seed threatens to KO Seismitoad from the get-go. Her speed means very little on my team can outpace it unless it's in the rain, forcing me to sacrifice Liepard to Thunder Wave it before I can bring it down.
Sawsbuck: Perhaps more than Cincinno, the deer causes me a lot of trouble. Serperior can't keep taking its physical attacks, and while Mantine and Beheeyem could take it down, they'd take heavy damage in the process. Substitute Sawsbuck are a major pain for me.
Miltank: The giant cow is truly the queen of fatties, being extremely hard to take down and fast enough to outpace all but Serperior and Liepard outside of the rain. Only Beartic can deliver a truly strong hit, but that's not even a guaranteed KO.
Fast physical sweepers in general: With Liepard being the only one who can slow them down, seeing multiple Pokemon like that on the opponent's team, like Tauros, makes me aware it could be an uphill battle.
Hazards: Rocks chip away 25% of Beartic and Mantine's health, and Serperior and Beheeyem dislike Toxic Spikes.