Gen 7 VGC / Battle Spot / Doubles OU Cores Thread

[Hojunhu]

Not to steal your thunder, @Black117, but I've been toying with the following core. Granted, I've just added rain to your Alolan Raichu + Koko set, but it's super strong.

Rainstorm

- Pokémon featured: Tapu Koko + Alolan Raichi + Peliper
- Metagame: S/M VGC 17
- Core type: Offensive/Utility
- Sets:

Note: EVs for Koko and Raichu are pretty standard, but Peliper EVs are my own experiment.

Tapu Koko @ Electrium Z
Ability: Electric Surge
Level: 50
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Thunder
- Dazzling Gleam
- Thunderbolt
- Protect

Raichu-Alola @ Pecha Berry
Ability: Surge Surfer
Level: 50
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Encore
- Protect
- Discharge

Pelipper @ Focus Sash
Ability: Drizzle
Level: 50
EVs: 172 HP / 84 Def / 128 SpA / 124 Spe
Modest Nature
IVs: 0 Atk
- Tailwind
- Hurricane
- Scald
- Protect

Pretty self explanatory. Tailwind to help make fast Pokemon much, much faster. If you use my Peliper set Sash will save Peliper from opposing Koko to get tailwind off, and is then faster then max speed Koko under tailwind to get a hurricane off and to either double target with partner for KO or get a scald off on another threat before honorably giving its life to our cause. For info on why Koko and Raichu work well, see Black's above post.