

Porygon-Z (Keldeo-Resolute) @ Choice Specs
Ability: Adaptability
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Surf / Hydro Pump
- Hydro Pump / Flip Turn
- Vacuum Wave / Flip Turn
- Secret Sword
NEW STATS: 91/92/107/
162/108/
130
Oh, man... This thing looks ready to tear FF to shreds. I don't mean this set alone - I mean this mon as a whole. Pretty much any set you could imagine is completely borked. Tinted Lens sets with Yanmega completely bypass things that resist Keldeo's attacks, but this set provides enough raw power to muscle through the majority of neutral targets it faces like Meloetta and Alomomola. For example...
Vs.

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- 252 SpA Choice Specs Adaptability Keldeo-Resolute Secret Sword vs. 252 HP / 252+ Def Alomomola: 212-250 (39.7 - 46.8%) -- 35.5% chance to 2HKO after Stealth Rock
Even after maximum defensive investment from Alomomola's end, Keldeo has a decent shot at 2HKOing the poor fish from full HP... After Stealth Rock, of course. Any other minimal chip brings Alomomola down to a guaranteed 2HKO.
Vs.

+
- 252 SpA Choice Specs Adaptability Keldeo-Resolute Secret Sword vs. 252 HP / 252+ Def Meloetta: 240-284 (59.4 - 70.2%) -- guaranteed 2HKO
To Meloetta's credit, its physical bulk... isn't all that impressive. A guaranteed 2HKO from Secret Sword is still pretty insane, but you know what's worse?
- 252 SpA Choice Specs Adaptability Keldeo-Resolute Hydro Pump vs. 252 HP / 252+ SpD Assault Vest Meloetta: 154-182 (38.1 - 45%) -- guaranteed 2HKO after Stealth Rock and 1 layer of Spikes
That's right. Meloetta gets 2HKOed by Hydro Pump after Stealth Rock and other minimal chip. Meloetta, who has 150 base SpD, a boosting nature, and Assault Vest, is 2HKOed by a special move after taking slight chip. Keldeo is an absolutely nutty Pokemon.
I won't even bother showing off Hoodra's or Tusk's calcs. Hoodra just outright loses to Secret Sword and Tusk loses to Hydro Pump. TLDR, Keldeo needs to be stopped. I wouldn't be shocked to see it on the next slate... Whenever that is.