Need some teams

[big bird]

My only good team (Got to 1400 on Showdown, not that great but that's the best I've done lol):

Gengar @ Focus Sash
Ability: Levitate
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Shadow Ball
- Sludge Bomb
- Thunderbolt
- Focus Blast

Chansey @ Eviolite
Ability: Natural Cure
EVs: 4 HP / 252 Def / 252 SpD
Bold Nature
- Thunder Wave
- Seismic Toss
- Stealth Rock
- Soft-Boiled

Gyarados @ Gyaradosite
Ability: Intimidate
EVs: 60 HP / 252 Atk / 196 Spe
Jolly Nature
- Dragon Dance
- Waterfall
- Crunch
- Earthquake

Serperior @ Assault Vest
Ability: Contrary
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Hidden Power [Fire]
- Giga Drain
- Dragon Pulse
- Leaf Storm

Kyurem-Black @ Life Orb
Ability: Teravolt
Shiny: Yes
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Fusion Bolt
- Earth Power
- Ice Beam
- Hidden Power [Fire]

Tornadus-Therian @ Assault Vest
Ability: Regenerator
EVs: 100 HP / 112 Atk / 44 SpA / 252 Spe
Hasty Nature
- Hurricane
- Knock Off
- U-turn
- Heat Wave

You're probably more experienced/higher on the ladder but here you go. Feel free to change it since it's weak to Stealth Rocks and the Tornadus spread is very random. Only noteworthy thing is Gyarados will outspeed a M-Lopunny after +1 Dragon Dance with it's investment and I just dumped the rest into HP.