Hoopa @ Salac Berry
Ability: Magician
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Substitute
- Psyshock
- Shadow Ball
- Thunderbolt / Nasty Plot
Hoopa's ability to switch into the variety of Psychic weak Pokemon and HJK spammers that threaten this core massively makes it the ideal partner. A Sub Attacker set OHKOs all the offensive threats mentioned above, as well as a few others. Salac Berry is helpful late game to get you out of a bad situation and clean up the foe's team. Also SubPlot + Salac Berry is helpful if your team needs a wincon. Thunderbolt hits Alomomola, making Hoopa able to handle fran17's core decently, but not amazingly. Hoopa has few flaws, but its frailty and unability to switch into Hitmonlee makes it worse but still really good.
Calcs Of Terror
252 SpA Hoopa Psyshock vs. 0 HP / 0 Def Venusaur: 338-402 (112.2 - 133.5%) -- guaranteed OHKO
252 SpA Hoopa Shadow Ball vs. 0 HP / 0 SpD Medicham: 372-438 (142.5 - 167.8%) -- guaranteed OHKO
252 SpA Hoopa Psyshock vs. 0 HP / 4 Def Hitmonlee: 480-566 (199.1 - 234.8%) -- guaranteed OHKO (keep in mind you may have to play around this with SubSalac)
252 SpA Hoopa Psyshock vs. 252 HP / 252+ Def Emboar: 272-324 (64.1 - 76.4%) -- guaranteed 2HKO after Leftovers recovery (requires prior damage, which should be doable with Samurott / other team members)
252 SpA Hoopa Thunderbolt vs. 120 HP / 252+ SpD Alomomola: 248-294 (49.5 - 58.6%) -- 69.5% chance to 2HKO after Leftovers recovery (can't calc Mirror Coat, but I would imagine it would do a lot or at least an unwanted amount -- if you Sub, however, you should be fine)
EDIT: Forgot to mention that you can beat Hitmonlee if you Sub or Psyshock on the predicted switch