Nidoking "AntiKing" @ Life Orb
Naughty-252 Atk, 134 Hp, 80 Def, 44 Sp Atk
Poison Point
~Fire Blast/Brick Break/Substitute
~HP Flying/Substitute
~Sucker Punch
~Focus Punch
With Nidoking's very large movepool, he can counter many pokemon at a time. The EV Spreads are are meant for an assault on Heracross. The EV Spread is a guarenteed 2HKO using HP Flying and Sucker Punch combo on Heracross and allows NOTHING that Adamant non Band 252 Heracross can throw at it to 1HKO except for a very few Earthquakes, but those still require the Life Orb recoil to kill you.
The move choices are up to you, but the only real choice is between Fire Blast and Brick Break. Substitute can be used to better the chances of a sucessful Focus Punch, and to stop status like Sleep, or Stun Spore users.
Here are a some of the calcs I ran.
216 attack vs 226 defense, 70 power(*4*1.3), 301 max HP: 85.05% - 100%
311 attack vs 186 defense, 80 power(/2*1.3), 301 max HP: 20.6% - 24.58%
HP, then Sucker Punch combo on Adamant Heracross, 0 Hp EVs. Guaranteed 2HKO, although there is a slight chance of 1HKO.
216 attack vs 176 defense, 120 power(*1.3*2), 334 max HP: 82.63% - 97.31%
Fire Blast on Skarm. If it hits both times, a guaranteed KO.
216 attack vs 157 defense, 120 power(*4*1.3), 354 max HP: 174.58% - 205.65%
Fire Blast on Forretress, again, if it hits, it completely destroys Forre.
311 attack vs 130 defense, 150 power(*2*1.3), 714 max HP: 93.7% - 110.22%
311 attack vs 130 defense, 75 power(*2*1.3), 714 max HP: 46.92% - 55.32%
Focus Punch then Brick Break on Blissey. Guaranteed kill after the combo.
Nidoking "AntiKing2" @ Life Orb
Lonely-252 Atk, 252 Sp Atk, 4 Speed
Poison Point
~HP Grass/Fire Blast
~Megahorn
~Focus Punch
~Ice Beam/Fire Blast
The second AntiKing set. Mostly involved around killing tanks, the EV Spread allows it to outspeed No Speed Cressilia. The choice is yours on moves. Megahorn is a guaranteed 2HKO on some Cresselias, and has a fairly good chance of a 2HKO on other Cressy's. Fire Blast is a guarenteed 1HKO, even with the Sp Atk drop while using HP Grass. Focus Punch is a 1HKO on Blissey sometimes, and Megahorn can finish it off. Ice Beam can 1HKO Gliscor, although you must expect the switch in, as Gliscor will Destroy you with an Earthquake. HP Grass can take a lot out of Swampert, and Fire Blast 1HKO's Skarmory, Tangrowth and Forretress and can take a decent dent out of Max/Max Bronzong.
More calcs
311 attack vs 130 defense, 150 power(*2*1.3), 714 max HP: 93.7% - 110.22%
311 attack vs 130 defense, 120 power(*1.3), 714 max HP: 37.54% - 44.12%
Nidoking predicting the Blissey switch, using Focus Punch, then finishing the job with Megahorn.
268 attack vs 136 defense, 120 power(*1.3*2), 404 max HP: 109.41% - 128.71%
252 Hp, 0 Sp Def Tangrowth. Guaranteed 1HKO even after the IV drop from HP Grass
268 attack vs 338 defense, 120 power(*1.3*2), 364 max HP: 49.18% - 57.69%
Max Hp/Max Sp Def Bronzong. Although not many run this, Nidoking has a 58.984375% with Leftovers on Bronzong.
268 attack vs 176 defense, 120 power(*1.3*2), 334 max HP: 102.4% - 120.66%
Max Hp/0 Sp Def Skarmory. Guaranteed 1HKO
311 attack vs 329 defense, 120 power(*1.3*2), 401 max HP: 53.37% - 62.84%
These are the Maximum EVs in HP and Def that a Cresselia can have for Nidoking to have a guaranteed 2HKO with Megahorn.
199 attack vs 186 defense, 95 power(*2), 306 max HP: 48.04% - 56.86%
The amount of damage a 52 Sp Atk Cresselia can do to Nidoking with Ice Beam. With Life Orb recoil, it obviously gives them a 2HKO, but that still allows for ample time for you to 2HKO Cressy
268 attack vs 216 defense, 70 power(*1.3*4), 401 max HP: 81.55% - 95.76%
HP Grass on Swampert with 0 Sp Def, and enough HP to Survive dem Blissey Seismic tosses. Obviously, not a 1HKO, but it gets close.
This is all stuff I had posted on a site a month ago.
It's worked fairly effectivly. Note, I run Sub over HP Flying, and Fire Blast over Brick Break
