Standard rules, no ubers, no legendaries and half of you team has to be the same type.
Swampert
Leftovers
Torrent
Sassy nature
[100 HP, 104 DEF, 252 SP ATK, 100 SP DEF]
Roar
Stealth Rock
Muddy Water
Earthquake
Breloom
Toxic Orb
Poison Heal
Adamant nature
[4 HP, 252 ATK, 252 SPD]
Leech Seed
Spore
Focus Punch
Substitute
Umbreon
Leftovers
Synchronize
Careful nature
[156 HP, 252 DEF, 100 SP DEF]
Wish
Yawn
Heal Bell
Payback
Dusknoir
Leftovers
Pressure
Careful nature
[252 HP, 4 DEF, 252 SP DEF]
Shadow Punch
Thunder Punch
Will-O-Wisp
Pain Split
Rotom
Choice Scarf
Levitate
Timid nature
[4 HP, 252 SP ATK, 252 SPD]
Thunderbolt
Shadow Ball
Overheat
Trick
Gengar
Life Orb
Levitate
Timid nature
[4 HP, 252 SP ATK, 252 SPD]
Shadow Ball
Focus Blast
Thunderbolt
Destiny Bond
Torrent
Sassy nature
[100 HP, 104 DEF, 252 SP ATK, 100 SP DEF]
Roar
Stealth Rock
Muddy Water
Earthquake
Poison Heal
Adamant nature
[4 HP, 252 ATK, 252 SPD]
Leech Seed
Spore
Focus Punch
Substitute
Synchronize
Careful nature
[156 HP, 252 DEF, 100 SP DEF]
Wish
Yawn
Heal Bell
Payback
Pressure
Careful nature
[252 HP, 4 DEF, 252 SP DEF]
Shadow Punch
Thunder Punch
Will-O-Wisp
Pain Split
Levitate
Timid nature
[4 HP, 252 SP ATK, 252 SPD]
Thunderbolt
Shadow Ball
Overheat
Trick
Levitate
Timid nature
[4 HP, 252 SP ATK, 252 SPD]
Shadow Ball
Focus Blast
Thunderbolt
Destiny Bond