Halloween Special UU

The UU and Ubers tier are where I think the Halloween teams are most effective. I've been having such a blast!

Haunted Bat (Crobat) (M) @ Black Sludge
Ability: Inner Focus
EVs: 248 HP / 36 Atk / 224 Spe
Jolly Nature
- Roost
- Defog
- Brave Bird
- U-turn

Trick-or-Treat (Kadabra) (M) @ Focus Sash
Ability: Magic Guard
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Taunt
- Counter
- Psyshock
- Dazzling Gleam

Beauty&Beast (Chandelure) (M) @ Ghostium Z
Ability: Flash Fire
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Calm Mind
- Fire Blast
- Shadow Ball
- Energy Ball

Knock Knock... (Absol-Mega) (F) @ Absolite
Ability: Justified
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Sucker Punch
- Knock Off
- Superpower

Science Project (Reuniclus) (M) @ Leftovers
Ability: Magic Guard
EVs: 224 HP / 252 Def / 32 SpA
Relaxed Nature
IVs: 0 Atk / 0 Spe
- Recover
- Calm Mind
- Toxic
- Psychic

Gimmie Candy! (Blissey) @ Leftovers
Ability: Natural Cure
Shiny: Yes
EVs: 252 Def / 252 SpD / 4 Spe
Bold Nature
IVs: 0 Atk
- Soft-Boiled
- Stealth Rock
- Toxic
- Seismic Toss