Gurdurr @ Eviolite
Ability: Guts
EVs: 252 HP / 252 Atk / 4 Def
Adamant Nature
- Drain Punch
- Knock Off
- Mach Punch
- Bulk Up

Sneasel @ Life Orb
Ability: Inner Focus
EVs: 252 Atk / 4 SDef / 252 Spd
Jolly Nature
- Knock Off
- Ice Punch
- Ice Shard
- Pursuit

Vileplume @ Black Sludge
Ability: Effect Spore
EVs: 248 HP / 252 Def / 8 SDef
Bold Nature
IVs: 0 Atk
- Giga Drain
- Sludge Bomb
- Moonlight
- Stun Spore

Tauros (M) @ Life Orb
Ability: Sheer Force
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature
- Rock Climb
- Zen Headbutt
- Earthquake
- Rock Slide

Uxie @ Leftovers
Ability: Levitate
EVs: 252 HP / 80 Def / 176 Spd
Bold Nature
- Stealth Rock
- Psychic
- Yawn
- U-turn

Lanturn @ Leftovers
Ability: Volt Absorb
EVs: 40 HP / 252 Def / 216 SDef
Calm Nature
- Scald
- Volt Switch
- Heal Bell
- Hidden Power [Grass]

I centered this XY NU team around a core of Gurdurr and Sneasel; Gurdurr makes for a good win-condition, while Sneasel handles all of the Flying-, Psychic, and bulky Grass-type Pokemon that can get in Gurdurr's way. Vileplume handles Fairies which trouble the duo. Tauros gave me a revenge killer in case setup sweepers get out of hand and makes for a good cleaner. Uxie provides sheer momentum with Stealth Rock and Yawn + U-turn, and is a useful Fighting-type response. Lanturn has several useful elemental resistances to Fire, Electric, Water, and Ice, while providing good support with Heal Bell and a slow Volt Switch.