It's the curse of Rampardos all over again. Except that this time, it isn't a Pokémon with horrible Speed, but one with a horrible Ability.
HP: 75
Attack: 140 / ~45
Defence: 65
Special Attack: 112 / ~31
Special Defence: 65
Speed: 110
Ability: Defeatist
[SET]
name: Acrobat Attacker
move 1: Acrobatics
move 2: Earthquake
move 3: Hone Claws
move 4: Stone Edge / Head Smash
item: Flying Gem
nature: Jolly
evs: 4 HP / 252 Atk / 252 Spe
Pros:
- Attacking stats that many would kill for.
- Very fast.
- Good movepool, technically speaking it only lacks Fire Blast and Roost.
- Few things can survive the first Acrobatics, and Head Smash will still hit for good damage after Defeatist kicks in.
Cons:
- Hideous Ability.
- If it survives a hit, it becomes dead weight unless it uses Endeavour.
- The second Acrobatics won't hit as hard, and a miss pretty much equals death.
- Any kind of offensive priority move will ruin it.
Post away!

HP: 75
Attack: 140 / ~45
Defence: 65
Special Attack: 112 / ~31
Special Defence: 65
Speed: 110
Ability: Defeatist
[SET]
name: Acrobat Attacker
move 1: Acrobatics
move 2: Earthquake
move 3: Hone Claws
move 4: Stone Edge / Head Smash
item: Flying Gem
nature: Jolly
evs: 4 HP / 252 Atk / 252 Spe
Pros:
- Attacking stats that many would kill for.
- Very fast.
- Good movepool, technically speaking it only lacks Fire Blast and Roost.
- Few things can survive the first Acrobatics, and Head Smash will still hit for good damage after Defeatist kicks in.
Cons:
- Hideous Ability.
- If it survives a hit, it becomes dead weight unless it uses Endeavour.
- The second Acrobatics won't hit as hard, and a miss pretty much equals death.
- Any kind of offensive priority move will ruin it.
Post away!