Do you think This ghost mono team is good in your Opinion

Question

The Boss (Sableye-Mega) (M) @ Sablenite
Ability: Magic Bounce
Shiny: Yes
EVs: 248 HP / 8 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Will-O-Wisp
- Calm Mind
- Snarl
- Recover

Your soul's in here (Spiritomb) (F) @ Leftovers
Ability: Infiltrator
Shiny: Yes
EVs: 248 HP / 252 Def / 8 SpD
Bold Nature
IVs: 0 Atk
- Pain Split
- Calm Mind
- Ominous Wind
- Substitute

Candled (Chandelure) @ Choice Scarf
Ability: Infiltrator
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Flamethrower
- Energy Ball
- Shadow Ball
- Hidden Power [Ice]

Fakeachu (Mimikyu) @ Fairium Z
Ability: Disguise
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Play Rough
- Shadow Sneak
- Shadow Claw

Main Ghost (Gengar) @ Focus Sash
Ability: Cursed Body
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Shadow Ball
- Sludge Bomb
- Hidden Power [Ice]
- Will-O-Wisp

Evo strategy (Dusclops) @ Eviolite
Ability: Frisk
Shiny: Yes
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Toxic
- Rest
- Shadow Sneak
- Sleep Talk
This team Was made before Halloween what do you think This team otherwise won a lot for me :D

Comments

Replace Spiritomb and Dusclops with Marowak for a stronger attack stat and Jellicent for more reliable recovery. Replace Sableye's calm mind and snarl with protect to safely reveal opponents' moves and knock off to remove items. Give it careful nature to power up knock off a little. Replace Chandelure's flamethrower and hidden power with fire blast for more damage and trick to cripple status move users. Give Gengar a choice scarf to outspeed more stuff. Replace its sludge bomb, hidden power, and will-o-wisp with sludge wave for more power, focus blast to cover rock and steel, and steel hidden power to cover rock and fairy.

---

Why so many ghost mono ghost?

---

Because there is a format where all team members have to share a type, and ghost is a decent type in that format.