In Nidoking's OU dex it states: "Sucker Punch with the help of 16 EVs invested into Attack, Nidoking can outspeed and KO Gengar and Mega Alakazam" But:
16- Atk Life Orb Nidoking Sucker Punch vs. 0 HP / 4 Def Alakazam-Mega: 174-205 (69.3 - 81.6%) -- guaranteed 2HKO after Stealth Rock
Possible damage amounts: (174, 174, 177, 179, 182, 185, 185, 187, 190, 192, 195, 195, 198, 200, 203, 205)
16- Atk Life Orb Nidoking Sucker Punch vs. 4 HP / 0 Def Gengar: 185-218 (70.6 - 83.2%) -- guaranteed 2HKO after Stealth Rock
Possible damage amounts: (185, 187, 190, 190, 192, 195, 198, 200, 203, 203, 205, 208, 211, 213, 216, 218)
Neither scenario has a potential OHKO. Can anyone elaborate on the strategy Dex's recommendation?