Scary similar to Lord Esche's team [Edit: Well, two similars]. Posting now since I might not be much online before the deadline.
Tentacruel @ Black Sludge
Ability: Liquid Ooze
EVs: 240 HP / 244 Def / 24 Spe
Bold Nature
IVs: 0 Atk
- Rapid Spin
- Toxic Spikes
- Scald
- Acid Spray
Krookodile @ Choice Band
Ability: Intimidate
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Knock Off
- Earthquake
- Pursuit
- Superpower
Rotom-Heat @ Leftovers
Ability: Levitate
EVs: 248 HP / 96 Def / 20 SpD / 144 Spe
Calm Nature
IVs: 0 Atk
- Overheat
- Volt Switch
- Will-O-Wisp
- Thunderbolt
Porygon2 @ Eviolite
Ability: Trace
EVs: 252 HP / 164 Def / 92 SpD
Bold Nature
IVs: 0 Atk
- Tri Attack
- Discharge
- Toxic
- Recover
Cobalion @ Shuca Berry
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Close Combat
- Iron Head
- Stealth Rock
- Volt Switch
Aerodactyl-Mega @ Aerodactylite
Ability: Tough Claws
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Stone Edge
- Iron Head
- Hone Claws
Ability: Liquid Ooze
EVs: 240 HP / 244 Def / 24 Spe
Bold Nature
IVs: 0 Atk
- Rapid Spin
- Toxic Spikes
- Scald
- Acid Spray
Krookodile @ Choice Band
Ability: Intimidate
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Knock Off
- Earthquake
- Pursuit
- Superpower
Rotom-Heat @ Leftovers
Ability: Levitate
EVs: 248 HP / 96 Def / 20 SpD / 144 Spe
Calm Nature
IVs: 0 Atk
- Overheat
- Volt Switch
- Will-O-Wisp
- Thunderbolt
Porygon2 @ Eviolite
Ability: Trace
EVs: 252 HP / 164 Def / 92 SpD
Bold Nature
IVs: 0 Atk
- Tri Attack
- Discharge
- Toxic
- Recover
Cobalion @ Shuca Berry
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Close Combat
- Iron Head
- Stealth Rock
- Volt Switch
Aerodactyl-Mega @ Aerodactylite
Ability: Tough Claws
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Stone Edge
- Iron Head
- Hone Claws
Rotom-H is there to act as a counterpart to Tentacruel, both with typing and defenses. It applies pressure to hazard removal and fragile and physical sweepers while maintaining momentum. Porygon2 is a replacement for Shaymin that checks Nidoking (which I cannot deal with in Sticky Web) and Gyarados as well as tankier Pokemon that cannot deal with being toxiced. It does give up the Grass STAB for Suicune, Swampert etc though. Cobalion lays rocks and provides Fighting and Steel STABs to check the Fairy types and fat physical walls that give Krookodile trouble, all while being decently fast, dismantling faster threats against it and switching out into Krookodile once that has happened. Aerodactyl-Mega is the fastest Mega around here and deals with all the faster threats Cobalion cannot, especially after Hone Claws on the switch. It serves as a cleaner when Krookodile and Toxic Spikes has worn down the opposing team enough.
https://replay.pokemonshowdown.com/uu-409783604 - Team as a whole, functions well without the core
https://replay.pokemonshowdown.com/uu-409790931 - Really playing off the core to win versus another master chef team
https://replay.pokemonshowdown.com/uu-410215535 - Consistently checking and countering threats till concede
https://replay.pokemonshowdown.com/uu-409790931 - Really playing off the core to win versus another master chef team
https://replay.pokemonshowdown.com/uu-410215535 - Consistently checking and countering threats till concede