My first RMT. Posting this not only to get teambuilding advice but i feel explaining will help expand my metagame knowledge.

Overview
I made this team with Hyper Offense in mind and ended up with balance so it ended up with the defense Pokémon not having good synergy. The main idea of the team is the pivot around trying to find a way to kill any ground types then have Regieleki and Tapu Koko clean up with powerful Electric type spam.






Overview
I made this team with Hyper Offense in mind and ended up with balance so it ended up with the defense Pokémon not having good synergy. The main idea of the team is the pivot around trying to find a way to kill any ground types then have Regieleki and Tapu Koko clean up with powerful Electric type spam.






Regieleki @ Choice Specs
Ability: Transistor
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Volt Switch
- Thunderbolt
- Thunder
- Thunder Wave
Tapu Koko @ Choice Band
Ability: Electric Surge
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- U-turn
- Wild Charge
- Brave Bird
- Defog
Corviknight @ Shed Shell
Ability: Pressure
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Body Press
- Defog
- Roost
- U-turn
Excadrill @ Focus Sash
Ability: Mold Breaker
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Rock Tomb
- Rapid Spin
- Earthquake
- Stealth Rock
Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Toxic
- Moonblast
- Surf
- Haze
Rotom-Heat @ Heavy-Duty Boots
Ability: Levitate
EVs: 248 HP / 92 SpD / 168 Spe
Calm Nature
IVs: 0 Atk
- Volt Switch
- Overheat
- Thunder Wave
- Pain Split
Ability: Transistor
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Volt Switch
- Thunderbolt
- Thunder
- Thunder Wave
Tapu Koko @ Choice Band
Ability: Electric Surge
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- U-turn
- Wild Charge
- Brave Bird
- Defog
Corviknight @ Shed Shell
Ability: Pressure
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Body Press
- Defog
- Roost
- U-turn
Excadrill @ Focus Sash
Ability: Mold Breaker
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Rock Tomb
- Rapid Spin
- Earthquake
- Stealth Rock
Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Toxic
- Moonblast
- Surf
- Haze
Rotom-Heat @ Heavy-Duty Boots
Ability: Levitate
EVs: 248 HP / 92 SpD / 168 Spe
Calm Nature
IVs: 0 Atk
- Volt Switch
- Overheat
- Thunder Wave
- Pain Split
Regieleki @ Choice Specs
Ability: Transistor
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Volt Switch
- Thunderbolt
- Thunder
- Thunder Wave
So one of the brand new Regi's. When I saw this things speed stat and ability I knew I had to use it. I pretty much tried to build the team around this. Transistor plus STAB can easily do 50-75% on an unresisted hit, and under terrain it can easily KO common offensive threats after chip. I knew staying in with this and spamming thunderbolt wasn't going to be a viable option due to its poor defenses so I opted to put volt switch on it which still deals massive damage. Also due to poor coverage options i went for a full electric set since its most viable coverage move Ancient Power dosent do much to its most common switch in Landourus-T. I hardly think it matters anyway since you really only wanna click Volt Switch and Thunderbolt and maybe Thunder under rain or in clutch situations.
Abomasnow because Regieleki isn't in the Calculator, and +1 to factor in Transistor
+1 252 SpA Choice Specs Abomasnow Volt Switch vs. 0 HP / 0 SpD Dragapult in Electric Terrain: 177-208 (55.8 - 65.6%) -- guaranteed 2HKO
+1 252 SpA Choice Specs Abomasnow Volt Switch vs. 0 HP / 4 SpD Genesect in Electric Terrain: 289-342 (102.1 - 120.8%) -- guaranteed OHKO
+1 252 SpA Choice Specs Abomasnow Thunderbolt vs. 252 HP / 4 SpD Magearna in Electric Terrain: 316-373 (86.8 - 102.4%) -- 56.3% chance to OHKO after Stealth Rock
+1 252 SpA Choice Specs Abomasnow Volt Switch vs. 0 HP / 0 SpD Dragapult in Electric Terrain: 177-208 (55.8 - 65.6%) -- guaranteed 2HKO
+1 252 SpA Choice Specs Abomasnow Volt Switch vs. 0 HP / 4 SpD Genesect in Electric Terrain: 289-342 (102.1 - 120.8%) -- guaranteed OHKO
+1 252 SpA Choice Specs Abomasnow Thunderbolt vs. 252 HP / 4 SpD Magearna in Electric Terrain: 316-373 (86.8 - 102.4%) -- 56.3% chance to OHKO after Stealth Rock

Tapu Koko @ Choice Band
Ability: Electric Surge
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- U-turn
- Wild Charge
- Brave Bird
- Defog
Tapu Koko is the first Pokémon I thought of when teambuilding. With terrain boosting Regieleki's attacks and its own I thought it would be the perfect fit. I chose a physical set to hit any special walls that might try to sit on Regieleki. I also chose U-turn over Volt Switch so you can pivot on incoming ground types. Brave Bird is coverage to hit any incoming electric resist, and even deals a nice ~30% to Landourus-T after the Intimidate drop. Lastly I tacked Defog on because the biggest enemy of VoltTurn teams is hazard chip. Its very easy to get a defog of on an incoming counter and switching out.
-1 252- Atk Choice Band Tapu Koko Brave Bird vs. 0 HP / 68 Def Landorus-Therian: 109-129 (34.1 - 40.4%) -- guaranteed 3HKO
252- Atk Choice Band Tapu Koko Wild Charge vs. 248 HP / 252+ Def Eviolite Chansey in Electric Terrain: 313-370 (44.5 - 52.6%) -- guaranteed 2HKO after Stealth Rock
252- Atk Choice Band Tapu Koko Wild Charge vs. 248 HP / 252+ Def Eviolite Chansey in Electric Terrain: 313-370 (44.5 - 52.6%) -- guaranteed 2HKO after Stealth Rock

Corviknight @ Shed Shell
Ability: Pressure
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Body Press
- Defog
- Roost
- U-turn
The first defense Pokémon on my team. Next on my team I felt I needed a bulky reliable defogger that was able to pivot and check ground types. However it's only a check to ground types and isn't able to threaten them out minus Excadrill. I chose SpD over Def to "check" and pivot Dragapult, Tapu Lele, etc., and because it blanket checks ground they physical ground types I switch it in on like Excadrill, Hippodown, and some Landourus-T variants. Also it dosent check Urshifu-Single Strike which i saw as a big threat to this team so i left that to the next defensive Pokémon. Body Press over Brave Bird to avoid chip and hit Excadrill mainly. Shed Shell to escape Magnezone which I haven't actually seen much of.

Excadrill @ Focus Sash
Ability: Mold Breaker
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Rock Tomb
- Rapid Spin
- Earthquake
- Stealth Rock
When teambuilding I imagined its main job was to be a suicide lead, but with the prevalence of Regieleki on the ladder I have found the need to keep it alive to check it and other electric types through out the battle. Not much to say about the set because it's the most standard set for it right now. Rapid Spin adds another way to keep hazards of the field. Thats about it.

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Toxic
- Moonblast
- Surf
- Haze
My second defensive Pokémon. I was very scared of Urshifu-Single Strike so i looked for a Pokémon that would resist its STAB combination and found Tapu Fini. Max-Maxed for defense it also checks Landourus-T, Excadrill, Tyranitar(not really), Hippodown, and other physical threats. Surf to hit the electric resist it switches in on. Moonblast to hit fighting types and other switch ins. Haze to cancel set up obviously. Typing it out I see now that Toxic is an almost useless move due to Misty Terrain.
252 Atk Choice Band Urshifu Wicked Blow vs. 252 HP / 252+ Def Tapu Fini on a critical hit: 97-114 (28.1 - 33.1%) -- 92.2% chance to 4HKO after Leftovers recovery

Rotom-Heat @ Heavy-Duty Boots
Ability: Levitate
EVs: 248 HP / 92 SpD / 168 Spe
Calm Nature
IVs: 0 Atk
- Volt Switch
- Overheat
- Thunder Wave
- Pain Split
In my opinion Rotom-Heat is the best pivot in the game. With Heavy-Duty Boots and Pain Split its very hard to KO. It's also a very good lead versus non Landorous teams. Volt Switch takes advantage of the terrain and allows sometimes a slower switch on faster Pokémon. I've toyed around with lowering the speed and increasing bulk but I'm nervous to make it any slower to allow a "free" switch in. Overheat threatens Ferrothorn and hits hard on unresisted switch ins. Thunder Wave combined with its bulkiness and Pain Split make it easy to neuter speedy offensive threats, or defensive Pokémon, heal up and switch out. Overall it has a real unpredictable move pool that forces the opponent to think, and predicting wrong against this could end games.
Pros:
- Powerful electric spam is able to clean up most teams
-Really fun to use IMO, outplays are very satisfying
Cons:
-Poor defensive synergy
-Even though team is meant to lure out and kill ground types the team struggles to KO them
-Tyranitar: A choice banded Tyranitar lead of against my team and used Stone Edge and KO'd most of my team which prompted me to make this RMT
-Very prediction reliant
Conclusion or TL/DR:
A hyper offense team that turned balance. Meant to play around ground types until they're KO'd then have the electric types clean up. Poor defensive synergy and lack of a way to KO ground type plague this team. Might need a whole redesign but that's okay! NEED HELP!!