I'd like to nominate:
Yanmega @ Life Orb
Trait: Speed Boost
EVs: 160 Def / 252 SpA / 96 Spd
Nature: Modest (+SpA, -Atk)
-Bug Buzz
-Air Slash
-Shadow Ball
-Sleep Talk
Yanmega is a dangerous threat even in OU. After a KO on something slow like Conkeldurr, it can sweep late-game and be impossible to revenge kill after a couple speed boosts under its belt. Blaziken got banned because of the ability, still Yanmega is overpowered in UU, so its great in OU. Sleep Talk can cause unpredictability because after a spore for Amoonguss it can hit it with two of its strong STAB moves. Shadow Ball provides great coverage. It even has a resitance to mach punch which is useful and survive some other band priority users such as Terrakion's band quick attack. Special priority is in vacuum wave and it has a resist to it so it doesn't matter.
Yanmega @ Life Orb
Trait: Speed Boost
EVs: 160 Def / 252 SpA / 96 Spd
Nature: Modest (+SpA, -Atk)
-Bug Buzz
-Air Slash
-Shadow Ball
-Sleep Talk
Yanmega is a dangerous threat even in OU. After a KO on something slow like Conkeldurr, it can sweep late-game and be impossible to revenge kill after a couple speed boosts under its belt. Blaziken got banned because of the ability, still Yanmega is overpowered in UU, so its great in OU. Sleep Talk can cause unpredictability because after a spore for Amoonguss it can hit it with two of its strong STAB moves. Shadow Ball provides great coverage. It even has a resitance to mach punch which is useful and survive some other band priority users such as Terrakion's band quick attack. Special priority is in vacuum wave and it has a resist to it so it doesn't matter.