Dusclops @ Eviolite
Ability: Pressure
EVs: 252 HP / 8 Atk / 124 Def / 124 SpD
Brave Nature
IVs: 0 Spe
- Trick Room
- Will-O-Wisp
- Power-Up Punch
- Shadow Sneak

Dusclops is generally bad. It's got respectable bulk but is frail and lacks the flexibility of an item (such as safety goggles). Replacing this with something like jellicent might be a good idea. Dusclops can work I suppose but imo should be changed

Cresselia @ Safety Goggles
Ability: Levitate
EVs: 252 HP / 128 Def / 128 SpD
Relaxed Nature
IVs: 0 Spe
- Trick Room
- Calm Mind
- Psychic
- Ice Beam

you don't need 3 setters

Reuniclus @ Leftovers
Ability: Overcoat
Shiny: Yes
EVs: 252 HP / 252 SpA
Quiet Nature
IVs: 0 Spe
- Psychic
- Flash Cannon
- Shadow Ball
- Trick Room

use the set in the analysis.

Azumarill @ Sitrus Berry
Ability: Huge Power
EVs: 252 HP / 252 Atk
Brave Nature
- Aqua Jet
- Play Rough
- Belly Drum
- Protect

would be nice to support this with redirection somewhere on the team

Hariyama @ Flame Orb
Ability: Guts
EVs: 252 HP / 252 Atk
Brave Nature
- Protect
- Close Combat
- Rock Slide
- Iron Head

put wide guard and replace iron head with bullet punch
Needs fake out on the set

Camerupt @ Cameruptite
Ability: Magma Armor
EVs: 252 HP / 252 SpA
Quiet Nature
- Eruption
- Earth Power
- Flash Cannon
- Protect

don't use eruption, use heat wave. Get rid of flash cannon for ancientpower or substitute or fire blast