Rotom-W
 

Doubles / Triples set

Rotom-W @ Sitrus Berry
Modest, Levitate
252 HP / 160 SpA / 96 SpD
-Hydro Pump
-Thunderbolt / Discharge
-Thunder Wave
-Protect / Snatch

• washing machine shuts down rain incredibly easily
• Thunder Wave slows down Kingdra / Ludicolo / whatever Swift Swim Pokemon is on the other team
• EVs with Sitrus Berry are not 3hkoed by most Zapdos' Thunderbolts or Kingdra's Dragon Pulses
• hydro pump in the rain along with thunderbolt 2HKOes a huge number of Pokemon
• rotom-w has trouble dealing with Gastrodon, so HP grass is a viable (if gimmicky) option
• Snatch takes care of wide guard and tailwind users.

Triples Set

Rotom-W @ Choice Specs / Electric Gem
Modest, Levitate
4 HP / 252 SpA / 252 Spe
-Hydro Pump
-Discharge
-Trick
-Protect / Snatch

• This set works best on the side positions, with a Pokemon immune to Discharge in the middle
• Trick shuts down any Trick Room or Support Pokemon
• A ridiculously powerful Discharge or Hydro Pump is capable of OHKOing Pokemon with little or no Special Defense investment (i.e. genies), especially when paired with a Helping Hand user.

boom