kinda surprised im not seeing too many shuckle/sticky web cores here, so ill just go ahead and post my own supported offensive core
Gardevoir (M) @ Gardevoirite
Ability: Trace
Shiny: Yes
EVs: 24 Def / 232 SpA / 252 Spe
Timid Nature
- Hyper Voice
- Focus Blast
- Psyshock
- Taunt

Bisharp @ Black Glasses
Ability: Defiant
EVs: 252 Atk / 52 SpD / 204 Spe
Adamant Nature
- Knock Off
- Sucker Punch
- Iron Head
- Pursuit

Shuckle @ Mental Herb
Ability: Contrary
EVs: 252 HP / 252 Def / 4 SpD
Adamant Nature
- Sticky Web
- Toxic
- Rock Tomb
- Encore

shuckle has one job, sticky web. mental herb ensures you can use it through taunt, then rock tomb slows down their lead, toxic and encore screws anything that tries to setup on shuckle
gardevoir is the main sweeper of the core, and works amazingly well with the web support. pixelate hyper voice basically wrecks everything while focus blast handles steel and psyshock handles special walls such as chansey, taunt ruins any kind of setup from mons like ferrothorn or non-mega sableye
bisharp works very well as a late game or a backup plan, if they lead a magic bouncer such as sableye, having webs on your side of the field actually helps by giving bisharp a free +2, and sucker punch can take down a lot of threats, additionaly, black glasses gives more power to most of bisharps moveset without LO recoil. 52 sp.def evs also allow bisharp to survive hp fire from LO latios
252 SpA Life Orb Latios Hidden Power Fire vs. 0 HP / 52 SpD Bisharp: 213-252 (78.5 - 92.9%) -- guaranteed 2HKO
this core runs really well with priority that can handle flying types immune to sticky web, such as a weavile for lando/thundurus/tornadus
Gardevoir (M) @ Gardevoirite
Ability: Trace
Shiny: Yes
EVs: 24 Def / 232 SpA / 252 Spe
Timid Nature
- Hyper Voice
- Focus Blast
- Psyshock
- Taunt

Bisharp @ Black Glasses
Ability: Defiant
EVs: 252 Atk / 52 SpD / 204 Spe
Adamant Nature
- Knock Off
- Sucker Punch
- Iron Head
- Pursuit

Shuckle @ Mental Herb
Ability: Contrary
EVs: 252 HP / 252 Def / 4 SpD
Adamant Nature
- Sticky Web
- Toxic
- Rock Tomb
- Encore

shuckle has one job, sticky web. mental herb ensures you can use it through taunt, then rock tomb slows down their lead, toxic and encore screws anything that tries to setup on shuckle
gardevoir is the main sweeper of the core, and works amazingly well with the web support. pixelate hyper voice basically wrecks everything while focus blast handles steel and psyshock handles special walls such as chansey, taunt ruins any kind of setup from mons like ferrothorn or non-mega sableye
bisharp works very well as a late game or a backup plan, if they lead a magic bouncer such as sableye, having webs on your side of the field actually helps by giving bisharp a free +2, and sucker punch can take down a lot of threats, additionaly, black glasses gives more power to most of bisharps moveset without LO recoil. 52 sp.def evs also allow bisharp to survive hp fire from LO latios
252 SpA Life Orb Latios Hidden Power Fire vs. 0 HP / 52 SpD Bisharp: 213-252 (78.5 - 92.9%) -- guaranteed 2HKO
this core runs really well with priority that can handle flying types immune to sticky web, such as a weavile for lando/thundurus/tornadus