This is my rain team, it can be very effective but it had big troubles with skilled player ._. I've tried to fix the problems but fixed one, another problem appears.
The Team:
Politoed(Afrojack) (M) @ Leftovers
Trait: Drizzle
EVs: 252 HP / 252 Def / 4 SDef
Bold Nature (+Def, -Atk)
- Scald
- Protection
- Toxic
- Perish Song
Classic Toed supporter, he makes the rain. Scald can burn, toxic cripples the sweeper, protection for additional leftovers and PS for stop BP chains or force to switch. He had a nice physical bulkyness and he can survive also at some special attacks, and thanks this characteristics he can stop easily all kind of setupper. He suffer most of CB physical sweeper (like Terrakion or Dragonite), special sweeper in general and first of all Breloom and Celebi that can take scald and toxic from Toed, and can OHKO Toed with supereffective stab-moves, or in case of Breloom he can put asleep Toed and set up a substitute :|.
Hydreigon (Skream) (M) @ Leftovers
Trait: Levitate
EVs: 44 HP / 252 SAtk / 212 Spd
Modest Nature (+SAtk, -Atk)
- Dragon Pulse
- Focus Blast
- Substitute
- Surf
The idea of this team begin from him, i choose him because the Substitute set is simple but useful, he can switch into some of the most common special sweeper in the MG like Rotom-W and setup substitute easily, and so destroy the most of not special bulky pokes. The investment of evs in speed are enough to outspeed jolly 252 Spd Nite and give more bulkyness at my Hydreigon. Is also my unique offensive answer to Celebi, coz he resisted all of popolar Celebi moves (bar HP ice .-.). I choose Surf over Flamethrower or Fire Blast because it offers under the rain more coverage (Heatran if you don't want to miss a FB and unpredicted special defensive TTar, that are 2HKO with Surf+FB) and it lose power only against Scizor and Ferrothorn.
Chansey (Avicii) (F) @ Eviolite
Trait: Natural Cure
EVs: 252 HP / 252 Def / 4 SDef
Bold Nature (+Def, -Atk)
- Protect
- Wish
- Seismic Toss
- Thunder Wave
Chansey is the Special wall of this set, she can easily take all the special hits from others pokes, thanks to protect she can scout enemy's moves, and is a great move to combinate with wish. Thanks to def's evs investment she has also a nice physical bulkyness, perhaps she can survive and cripple Mixedmence, one of the greatest counter of the team. Thanks to seismic toss she does a moderate damage to the enemy. She absolutly fear Ferrothorn that can take huge amounts of HP with Leech Seed, and Supereffective moves with high damage.
Toxicroak (Rusko) (M) @ Leftovers
Trait: Dry Skin
EVs: 244 HP / 252 Atk / 12 Def
Adamant Nature (+Atk, -SAtk)
- Drain Punch
- Bulk Up
- Sucker Punch
- Substitute
My physical sweeper, he can switch into most of fighting pokes easily, and he can set up with sub and bulk up. The evs in HP are enough for take the maximum HP from Dry Skin. He had a nice coverage and thanks to his useful moveset if he can setup, he probably destroy the enemies team. After few Bulk Ups he can survive at most of physical hits and recover the damage with DP and dry skin, he fears Special Sweepers like Alakazam, Celebi, Gengar and above all Reuniclus because his physical bulkyness. He can easily set up in front of Conkeldurr or some Mono-water attack like Toed, Tentacruel or Suicune.
Ferrothorn (Skrillex) (M) @ Leftovers
Trait: Iron Barbs
EVs: 252 HP / 252 Def / 4 SDef
Relaxed Nature (+Def, -Spd)
- Stealth Rock
- Leech Seed
- Protection
- Gyro Ball
My Physical wall, he can switch into dragons locked in outrage and set up SR and leech seed, and he can kill easily fast pokes with Gyro Ball. Thanks to Iron Barbs he punish the U-Turn's scouts like Landorus. He had a great coverage thanks to his type and he hasn't a so bad SDef, so under the rain he can easily take an HP fire from the enemies. He fears above all Zone that he can trap him and kill him with Sub+ Charge Beam, but also all fighting type like Conkeldurr or Terrakion.
Starmie (deadmau5) @ Leftovers Trait: Natural Cure
EVs: 252 HP / 32 SDef / 224 Spd
Timid Nature (+Spd, -Atk)
- Scald
- Rapid Spin
- Psyshock
- Recover
I think Starmie is the better choice, it counter Tentacruel, and first of all Mamoswine, the greatest threats for my team, Starmie can outspeed him and revenge kill him with a Stab supereffective Scald. Thanks to Rapid Spin+Psyshok it can easily check Gengar, who can switch into for a predicted rapid spin. Recover is for recover the damage and give it a natural bulkyness. It can survive at one CC of CBTerrakion, so it doesn't even fix my team.
Threats:
The team isn't so bad, and doesn't have too hard counters bar Mamoswine, but i suffers too much entry hazard and bar TCroak doesn't have physical moves, so a wrong predict can resolve in a lost playgame.
1)Mamoswine: He can switch into easily on Chansey and cripples all the team with supereffective moves (Superpower, Ice Shard, EQ destroy all my team ._.)
2)Reuniclus: Thanks to his natural bulkyness he can take hits from toxicroak and destroy him with a stab Psycoshock, he doesn't fear toxic, and he can freely set up on Chansey.
3)CBTerrakion: With CC he can 2HKO all my team ._.
Thank you for watching ;)
The Team:


Politoed(Afrojack) (M) @ Leftovers
Trait: Drizzle
EVs: 252 HP / 252 Def / 4 SDef
Bold Nature (+Def, -Atk)
- Scald
- Protection
- Toxic
- Perish Song
Classic Toed supporter, he makes the rain. Scald can burn, toxic cripples the sweeper, protection for additional leftovers and PS for stop BP chains or force to switch. He had a nice physical bulkyness and he can survive also at some special attacks, and thanks this characteristics he can stop easily all kind of setupper. He suffer most of CB physical sweeper (like Terrakion or Dragonite), special sweeper in general and first of all Breloom and Celebi that can take scald and toxic from Toed, and can OHKO Toed with supereffective stab-moves, or in case of Breloom he can put asleep Toed and set up a substitute :|.

Hydreigon (Skream) (M) @ Leftovers
Trait: Levitate
EVs: 44 HP / 252 SAtk / 212 Spd
Modest Nature (+SAtk, -Atk)
- Dragon Pulse
- Focus Blast
- Substitute
- Surf
The idea of this team begin from him, i choose him because the Substitute set is simple but useful, he can switch into some of the most common special sweeper in the MG like Rotom-W and setup substitute easily, and so destroy the most of not special bulky pokes. The investment of evs in speed are enough to outspeed jolly 252 Spd Nite and give more bulkyness at my Hydreigon. Is also my unique offensive answer to Celebi, coz he resisted all of popolar Celebi moves (bar HP ice .-.). I choose Surf over Flamethrower or Fire Blast because it offers under the rain more coverage (Heatran if you don't want to miss a FB and unpredicted special defensive TTar, that are 2HKO with Surf+FB) and it lose power only against Scizor and Ferrothorn.

Chansey (Avicii) (F) @ Eviolite
Trait: Natural Cure
EVs: 252 HP / 252 Def / 4 SDef
Bold Nature (+Def, -Atk)
- Protect
- Wish
- Seismic Toss
- Thunder Wave
Chansey is the Special wall of this set, she can easily take all the special hits from others pokes, thanks to protect she can scout enemy's moves, and is a great move to combinate with wish. Thanks to def's evs investment she has also a nice physical bulkyness, perhaps she can survive and cripple Mixedmence, one of the greatest counter of the team. Thanks to seismic toss she does a moderate damage to the enemy. She absolutly fear Ferrothorn that can take huge amounts of HP with Leech Seed, and Supereffective moves with high damage.

Toxicroak (Rusko) (M) @ Leftovers
Trait: Dry Skin
EVs: 244 HP / 252 Atk / 12 Def
Adamant Nature (+Atk, -SAtk)
- Drain Punch
- Bulk Up
- Sucker Punch
- Substitute
My physical sweeper, he can switch into most of fighting pokes easily, and he can set up with sub and bulk up. The evs in HP are enough for take the maximum HP from Dry Skin. He had a nice coverage and thanks to his useful moveset if he can setup, he probably destroy the enemies team. After few Bulk Ups he can survive at most of physical hits and recover the damage with DP and dry skin, he fears Special Sweepers like Alakazam, Celebi, Gengar and above all Reuniclus because his physical bulkyness. He can easily set up in front of Conkeldurr or some Mono-water attack like Toed, Tentacruel or Suicune.

Ferrothorn (Skrillex) (M) @ Leftovers
Trait: Iron Barbs
EVs: 252 HP / 252 Def / 4 SDef
Relaxed Nature (+Def, -Spd)
- Stealth Rock
- Leech Seed
- Protection
- Gyro Ball
My Physical wall, he can switch into dragons locked in outrage and set up SR and leech seed, and he can kill easily fast pokes with Gyro Ball. Thanks to Iron Barbs he punish the U-Turn's scouts like Landorus. He had a great coverage thanks to his type and he hasn't a so bad SDef, so under the rain he can easily take an HP fire from the enemies. He fears above all Zone that he can trap him and kill him with Sub+ Charge Beam, but also all fighting type like Conkeldurr or Terrakion.


Starmie (deadmau5) @ Leftovers Trait: Natural Cure
EVs: 252 HP / 32 SDef / 224 Spd
Timid Nature (+Spd, -Atk)
- Scald
- Rapid Spin
- Psyshock
- Recover
I think Starmie is the better choice, it counter Tentacruel, and first of all Mamoswine, the greatest threats for my team, Starmie can outspeed him and revenge kill him with a Stab supereffective Scald. Thanks to Rapid Spin+Psyshok it can easily check Gengar, who can switch into for a predicted rapid spin. Recover is for recover the damage and give it a natural bulkyness. It can survive at one CC of CBTerrakion, so it doesn't even fix my team.
Threats:
The team isn't so bad, and doesn't have too hard counters bar Mamoswine, but i suffers too much entry hazard and bar TCroak doesn't have physical moves, so a wrong predict can resolve in a lost playgame.
1)Mamoswine: He can switch into easily on Chansey and cripples all the team with supereffective moves (Superpower, Ice Shard, EQ destroy all my team ._.)
2)Reuniclus: Thanks to his natural bulkyness he can take hits from toxicroak and destroy him with a stab Psycoshock, he doesn't fear toxic, and he can freely set up on Chansey.
3)CBTerrakion: With CC he can 2HKO all my team ._.
Thank you for watching ;)