Alright, there are two things I want to start off by saying:
Firstly, I have reccently switched back to OU from DW (where I could use my Lightning Rod Specially-Defensive Zapdos) and have started using Electivire again, so I'm the least sure of Electivire.
Secondly, I own a Japanese copy of the game and haven't played the English one, so if my names are weird, sorry.
Team Preview:
Team Building Proccess (Breif):
I used Gyarados at the VGCs last year and it went pretty well, but it was even better in singles with Electivire. So, i decided that I wanted to keep Gyarados as my main poke for this gen too (saves me breeding time for WiFi.) Electivire did also get Wild Bolt now, which makes an all physical set possible, so no EV Splitting there. So, I have my core of Gyarados and Electivire. I decided on a Bulkydos because it just last longer than other Gyarados and I don't have a spinner (which may need to change...)
Because Gyarados was my main sweeper, bulky waters give me trouble. And so I chose Drapion as my lead, so I can get down some Toxic Spikes and maybe spread some poison around their team off the bat.
Doryuuzu is big, and Nattorei loves to switch into Gyarados, so I added Magnezone, who will tear either of those guys a new one.
For revenge Killing, I'm trying out a new Gengar with Hex and Venom Shock since I have a good chance of spreading poison around.
I'm at a loss for my last slot, currently I'm using Erufuun as a pivot. But I'm considering EvoLite Dusclops as a spin blocker or Tentacruel as a T-spiker / Spinner / Venom Shock abuser.
Team:
Drapion @ Black Sludge
Sniper / Careful
EVs: 252 HP / 4 Def / 252 SpDef
Toxic Spikes
Whirlwind
Crunch
Earthquake
Lead, sets up T-Spikes pretty reliably. Can get a whirlwind in if I'm lucky and start Spreading the poison. Tried Dasutodasu for a bit, but it wasn't as reliable. Maybe I'll switch to it when it gets it's dream world ability, beacuse aftermath is nice.
Gyarados @ Leftovers
Intimidate / Impish
EVs: 156 HP / 72 Atk / 96 Def / 184 Spd
Dragon Dance
Waterfall
Taunt
Stone Edge
Primary sweeper. Comes in at an advantageous time, Dragon Dances, proceeds to move through teams. Because Breloom has been troublesome for me, I'm thinking about making Stone Edge, Bounce. Although that means that I lose Stone Edge for Salamance / Dragonite... I'm also considering EQ for steels...recently added Taunt so I can stop Nattorei or Skarmory before going to Magnezone.
Electivire @ Expert Belt
Motor Drive / Jolly
EVs: 4 HP / 252 Atk / 252 Spd
Wild Bolt
Cross Chop
Earthquake
Ice Punch
Comes in on Electric attacks. The speed boost makes him a pretty good sweeper. Move aiming for good coverage and Expert Belt to help that. Misses the Flamethrower from the old Mixed Electivire set, but EQ is better I think.
Magnezone @ Balloon
Magnet Pull / Bold
EVs: 200 HP / 210 Def / 100 SpAtk
Magnet Rise
Thunderbolt
Hidden Power [Fire]
Flash Cannon
Cleans up steels. Haven't ever had a problem with them. Considering making Thunderbolt into Discharge because it's still a 2HKO on Skarmory and could paralyze other pokemon making things easier on Electivire and Pre-Dance Gyarados.
Gengar @ Life Orb
Levitate / Modest
EVs: 4 HP / 252 SpAtk / 252 Spd
Hex
Venom Shock
Focus Blast
Giga Drain
Going for unconventional moves. Giga drain also helps out against things like Swampert and Quagsire when I see them. Base 130 BP Vemon Shock + STAB is really nice against pretty much everything. Focus Blast is there for steels when Magnezone is gone and for Tyranitars that could pursuit.
Erufuun @ Rugged Helmet
Prankster / Calm
EVs: 12 HP / 248 Def / 248 SpDef
Leech Seed
Cotton Guard
Stun Spore
U-Turn
Like I said, I don't know...Erufuun's time is limited. It works wonders at stalling though and helps me get back to a favorable possition. Although a spinner might be better to keep Gyarados' entries safer. Could also switch Stun Spore to Toxic to help Gengar more.
Problems:
Breloom. Considering Bounce to counteract that though.
Stealth Rocks.
Bulky Waters.
Thanks for the advice!
Firstly, I have reccently switched back to OU from DW (where I could use my Lightning Rod Specially-Defensive Zapdos) and have started using Electivire again, so I'm the least sure of Electivire.
Secondly, I own a Japanese copy of the game and haven't played the English one, so if my names are weird, sorry.
Team Preview:






Team Building Proccess (Breif):
I used Gyarados at the VGCs last year and it went pretty well, but it was even better in singles with Electivire. So, i decided that I wanted to keep Gyarados as my main poke for this gen too (saves me breeding time for WiFi.) Electivire did also get Wild Bolt now, which makes an all physical set possible, so no EV Splitting there. So, I have my core of Gyarados and Electivire. I decided on a Bulkydos because it just last longer than other Gyarados and I don't have a spinner (which may need to change...)
Because Gyarados was my main sweeper, bulky waters give me trouble. And so I chose Drapion as my lead, so I can get down some Toxic Spikes and maybe spread some poison around their team off the bat.
Doryuuzu is big, and Nattorei loves to switch into Gyarados, so I added Magnezone, who will tear either of those guys a new one.
For revenge Killing, I'm trying out a new Gengar with Hex and Venom Shock since I have a good chance of spreading poison around.
I'm at a loss for my last slot, currently I'm using Erufuun as a pivot. But I'm considering EvoLite Dusclops as a spin blocker or Tentacruel as a T-spiker / Spinner / Venom Shock abuser.
Team:

Drapion @ Black Sludge
Sniper / Careful
EVs: 252 HP / 4 Def / 252 SpDef
Toxic Spikes
Whirlwind
Crunch
Earthquake
Lead, sets up T-Spikes pretty reliably. Can get a whirlwind in if I'm lucky and start Spreading the poison. Tried Dasutodasu for a bit, but it wasn't as reliable. Maybe I'll switch to it when it gets it's dream world ability, beacuse aftermath is nice.

Gyarados @ Leftovers
Intimidate / Impish
EVs: 156 HP / 72 Atk / 96 Def / 184 Spd
Dragon Dance
Waterfall
Taunt
Stone Edge
Primary sweeper. Comes in at an advantageous time, Dragon Dances, proceeds to move through teams. Because Breloom has been troublesome for me, I'm thinking about making Stone Edge, Bounce. Although that means that I lose Stone Edge for Salamance / Dragonite... I'm also considering EQ for steels...recently added Taunt so I can stop Nattorei or Skarmory before going to Magnezone.

Electivire @ Expert Belt
Motor Drive / Jolly
EVs: 4 HP / 252 Atk / 252 Spd
Wild Bolt
Cross Chop
Earthquake
Ice Punch
Comes in on Electric attacks. The speed boost makes him a pretty good sweeper. Move aiming for good coverage and Expert Belt to help that. Misses the Flamethrower from the old Mixed Electivire set, but EQ is better I think.

Magnezone @ Balloon
Magnet Pull / Bold
EVs: 200 HP / 210 Def / 100 SpAtk
Magnet Rise
Thunderbolt
Hidden Power [Fire]
Flash Cannon
Cleans up steels. Haven't ever had a problem with them. Considering making Thunderbolt into Discharge because it's still a 2HKO on Skarmory and could paralyze other pokemon making things easier on Electivire and Pre-Dance Gyarados.

Gengar @ Life Orb
Levitate / Modest
EVs: 4 HP / 252 SpAtk / 252 Spd
Hex
Venom Shock
Focus Blast
Giga Drain
Going for unconventional moves. Giga drain also helps out against things like Swampert and Quagsire when I see them. Base 130 BP Vemon Shock + STAB is really nice against pretty much everything. Focus Blast is there for steels when Magnezone is gone and for Tyranitars that could pursuit.

Erufuun @ Rugged Helmet
Prankster / Calm
EVs: 12 HP / 248 Def / 248 SpDef
Leech Seed
Cotton Guard
Stun Spore
U-Turn
Like I said, I don't know...Erufuun's time is limited. It works wonders at stalling though and helps me get back to a favorable possition. Although a spinner might be better to keep Gyarados' entries safer. Could also switch Stun Spore to Toxic to help Gengar more.
Problems:
Breloom. Considering Bounce to counteract that though.
Stealth Rocks.
Bulky Waters.
Thanks for the advice!