Sets to try

Malamar @ Leftovers
Ability: Contrary
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Knock Off
- Superpower
- Rest
- Sleep Talk

Rotom-Frost @ Leftovers
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Substitute
- Will-O-Wisp
- Thunderbolt
- Blizzard

Stunfisk @ Rocky Helmet
Ability: Static
EVs: 44 HP / 224 Def / 240 SpD
Bold Nature
IVs: 0 Atk
- Stealth Rock
- Discharge
- Pain Split
- Earth Power

Scrafty @ Leftovers
Ability: Shed Skin
EVs: 244 HP / 12 Def / 252 SpD
Sassy Nature
IVs: 0 Spe
- Rest
- Bulk Up
- Knock Off
- Drain Punch

Infernape @ Life Orb
Ability: Blaze
EVs: 168 Atk / 88 SpA / 252 Spe
Hasty Nature
- Fire Blast
- Close Combat
- Grass Knot
- Earthquake

Lucario @ Lucarionite
Ability: Inner Focus
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Extreme Speed
- Iron Tail

Seviper @ Life Orb
Ability: Shed Skin
EVs: 40 Atk / 252 SpA / 216 Spe
Rash Nature
- Sludge Wave
- Giga Drain
- Sucker Punch
- Flamethrower

Crustle @ Custap Berry
Ability: Sturdy
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Stealth Rock
- Spikes
- Shell Smash
- Rock Blast