[Flashrider57]

Type of pair: Mixed / Other

Rotom-S@Damp Rock
Levitate
Modest Nature
252 HP / 4 Def / 252 SpA
-Rain Dance
-Air Slash
-Thunder
-Pain Split

Seismitoad@Damp Rock
Swift Swim
Modest Nature
96 HP / 252 SpA / 160 Spe
-Rain Dance
-Hydro Pump
-Earth Power
-Stealth Rock

I know what you're thinking: "This has got to be the oddest pair I've seen in a while." And you'd be correct, it IS odd. However, it is one of the most effective Rain Dance pairs I've had. The secret lies in the type synergy that the two have, both offensively and defensively. Both are bulky, both can set up Rain Dance, and both can take advantage of Rain Dance. Seismitoad takes advantage of Rain Dance by outspeeding its opponents with Swift Swim while hitting them with STAB Hydro Pump and Earth Power. Additionally, it can set up Stealth Rock to weaken opponents up for other Rain sweepers to run through. However, Seismitoad has trouble with Grass- and Water-types, which can wall Seismitoad easily. That's where Rotom-S comes in. With Rain Dance up, it can spam Thunder to take out Water-types, while Air Slash takes care of most Grass-types, such as Amoonguss and Tangela. Additionally, Seismitoad can switch into the Rock-type moves that Rotom-S attracts. Overall, the two make a great Rain Dance pair. However, the pair does have some weaknesses, such as special walls like Lickilicky and Altaria. Thankfully, this can be compensated for by adding a physical Rain Dance sweeper like Huntail to the mix. Feel free to try this out!