This is a variation of an Ambipom set from
BW UU.
Ambipom @ Choice Band
Ability: Technician
EVs: 252 Atk / 4 SpA / 252 Spe
Naive/Jolly Nature
- Double-Edge/Return
- Beat Up
- Low Kick
- Grass Knot/Fire Punch/Switcharoo
I know that Beat Up is normally horribly outclassed by Knock Off. But Ambipom can't 2HKO Cresselia, Bronzong, Spiritomb or Doublade with Knock Off. Extra power is needed, and Technician Beat Up provides it. Assuming that your team has 6 alive Pokemon with an average base Attack of 70 (or 5 with an average of 90), and with the boost from Technician, you end up with a roughly 108 Base Power Dark Type move. Compare this to Knock Off, whose two hit average Base Power is 81.25. As a bonus, if Cofagrigus bothers you, Beat Up does not trigger Mummy.
252 Atk Choice Band Ambipom Beat Up (108 BP) vs. 252 HP / 152+ Def Cresselia: 202-238 (45.4 - 53.6%) -- 92.6% chance to 2HKO after Stealth Rock and Leftovers recovery
252 Atk Choice Band Ambipom Beat Up (108 BP) vs. 212 HP / 0 Def Eviolite Doublade: 138-164 (44.2 - 52.5%) -- 76.6% chance to 2HKO after Stealth Rock
252 Atk Choice Band Ambipom Beat Up (108 BP) vs. 252 HP / 252+ Def Bronzong: 192-226 (56.8 - 66.8%) -- guaranteed 2HKO
252 Atk Choice Band Ambipom Beat Up (108 BP) vs. 252 HP / 4 Def Spiritomb: 137-162 (45 - 53.2%) -- guaranteed 2HKO after Stealth Rock (still loses to defensive Tomb)
252 Atk Choice Band Ambipom Knock Off (97.5 BP) vs. 252 HP / 152+ Def Cresselia: 180-214 (40.5 - 48.1%) -- 6.6% chance to 2HKO after Stealth Rock and Leftovers recovery
252 Atk Choice Band Ambipom Knock Off (97.5 BP) vs. 212 HP / 0 Def Eviolite Doublade: 124-148 (39.7 - 47.4%) -- 1.2% chance to 2HKO after Stealth Rock
252 Atk Choice Band Ambipom Knock Off (97.5 BP) vs. 252 HP / 252+ Def Bronzong: 172-204 (50.8 - 60.3%) -- guaranteed 2HKO
252 Atk Choice Band Ambipom Knock Off (97.5 BP) vs. 252 HP / 4 Def Spiritomb: 124-146 (40.7 - 48%) -- 64.5% chance to 2HKO after Stealth Rock
All of the Knock Off calcs are 3HKOs when the power drop is factored in, of course.
The fourth moves are filler designed to hit specific walls hard. Grass Knot 2HKOs Rhyperior, and does around the same damage to it as Cinccino's Bullet Seed (and way more than Ambipom's own Seed Bomb). Fire Punch 1HKOs Durant and Escavalier, and Switcharoo messes up Alomomola (warning: Double Edge is not compatible with Switcharoo).
It sucks that a lot of these calcs are 2HKOs, but Ambipom is a magnet for physical walls due to the expected Fake Out, and it still beats out Cinccino and Zangoose. Still, if a mod took one look at this wall of text and decided to blacklist Ambipom from this thread, I would understand.
Finally, these are the base Attack stats for the most common Pokemon of RU. Notice that most of them exceed 70, matching my calculations above if all of them are alive:
Cobalion - 90
Dragalge - 75
Hitmonlee - 120
Doublade - 110
Pangoro - 124
Alomomola - 75
Rhyperior - 140
Bronzong - 89
Cresselia - 70
Slowking - 75
Meloetta - 77 (Meloetta-P's stats will never be used)
Registeel - 75
Reuniclus - 65
Moltres - 100
Glalie - 80 (120 if Mega Evolved)
Escavalier - 135
Abomasnow - 92 (132 if Mega Evolved)
Ambipom itself is 100. Sneasel is 95.