http://replay.pokemonshowdown.com/gen7rubeta-554014825

Galvantula @ Focus Sash
Ability: Compound Eyes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Thunder
- Hidden Power [Ice]
- Protect
- Sticky Web

Froslass @ Focus Sash
Ability: Cursed Body
EVs: 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Taunt
- Spikes
- Destiny Bond
- Ice Beam

Donphan @ Assault Vest
Ability: Sturdy
EVs: 128 HP / 252 Atk / 128 Spe
Adamant Nature
- Knock Off
- Earthquake
- Rapid Spin
- Ice Shard

Heracross @ Flame Orb
Ability: Guts
EVs: 252 Atk / 252 Spe
Jolly Nature
- Megahorn
- Close Combat
- Knock Off
- Earthquake

Nidoqueen @ Life Orb
Ability: Sheer Force
EVs: 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Wave
- Fire Blast
- Thunderbolt
- Ice Beam

Braviary @ Choice Scarf
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Brave Bird
- Return
- U-turn
- Superpower

The main gist of this team is to pressure the opponent with hazards and insanely power wallbreakers. Galvantula and Froslass are both on this team as the hazards they each provide allow this team to pressure offensive, defensive and balance teams alike. Fighting off against a team which is bulkier and needs to be worn down? Lead with froslass and use spikes. Hyper-offensive team looking scary to your mons? Use sticky web. Braviary is on this team for defiant, punishing defogs and being able to avoid any webs or spikes itself due to the flying type, although it has to be aware of potential scald burns. Nidoqueen is godly. Its combination of obscene power and decent bulk allow it to patch up any holes by beating pokemon that the team would otherwise have trouble with like Bronzong. Finally, Donphan is the hazard-removal of choice because it doesn't give up offensive momentum in order to get rid of the hazards. The 128 speed evs allows it to outspeed 44 speed Jellicent, attack is maxed and the rest is put into HP.