Rate my Gen 7 OU team

Question

Giant Spike Machine (Ferrothorn) @ Rocky Helmet
Ability: Iron Barbs
EVs: 248 HP / 128 Def / 132 SpD
Bold Nature
- Leech Seed
- Spikes
- Stealth Rock
- Power Whip

Sucker for Pain (Bisharp) (M) @ Dread Plate
Ability: Defiant
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Knock Off
- Iron Head
- Sucker Punch
- Swords Dance

Kyurem-Black @ Life Orb
Ability: Teravolt
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Ice Beam
- Fusion Bolt
- Earth Power
- Roost

Tapu Cocoa (Tapu Koko) @ Electrium Z
Ability: Electric Surge
EVs: 108 HP / 252 SpA / 148 Spe
Timid Nature
- Thunderbolt
- Dazzling Gleam
- Hidden Power [Ice]
- U-turn

Landorus-Therian @ Rocky Helmet
Ability: Intimidate
EVs: 252 HP / 4 SpD / 252 Spe
Impish Nature
- Stealth Rock
- Earthquake
- Hidden Power [Ice]
- U-turn

I love me spikes (Toxapex) @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 128 Atk / 4 Def / 124 SpA
Adamant Nature
- Baneful Bunker
- Scald
- Poison Jab
- Recover

Comments

Replace U-Turn with Volt Switch on Koko, and Poison Jab with Venoshock on Toxapex

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Give Ferrothorn a leftovers for more reliable recovery and relaxed nature to strengthen power whip slightly. Keep u-turn on Tapu Koko so you can switch quickly when the opponent sends in a ground Pokemon. Give Landorus 252 Atk/4 Def/252 Spe hasty for more power. Give Toxapex 252 HP/4 Def/252 SpD calm for more bulk. Replace baneful bunker and poison jab with toxic spikes to poison opponents and haze to prevent them from setting up. Don't use venoshock because Toxapex's attack stats are too low to be reliable.