When I started to make this team, I wanted the cliché fire, grass, water defensive core. Blah blah blah. I ended up building a team with Infernape, Vaporeon, Tangrowth, Scizor, and Flygon. But I needed one team member that could bring it all together. And that pokemon is the mighty NIDOKING.
Here's the team...
Infernape @ Focus Sash
Trait: Blaze
EV's: 252 Speed/252 Attack/4 Special Attack
Nature: Hasty
Moveset: Stealth Rock | Overheat | Close Combat | U-turn
My one and only lead. Infernape can come in an be an instant in your face threat. Stealth Rock is Stealth Rock, Focus Sash ensures I can get that up if I want to. Overheat can cripple most anything, Close Combat is a given on Infernape sets and is useful for Chansey/Blissey. I chose U-turn over Fake Out simply because not too many people run Sash anymore and I want to be able to keep momentum. (Especially useful against Whimsicott).
Vaporeon @ Leftovers
Trait: Water Absorb
EV's: 252 Defense/248 HP/8 Special Defense
Nature: Bold
Moveset: Toxic | Wish | Protect | Scald
Oh Vaporeon, you are simply one of the best Toxic stallers in the game. Not only can you whittle opponents down with Toxic, but you also provide my team Wish support, which I need. Scald > Surf because of burn chance on Physical Attackers. Water Absorb is great for recovery on a normally crippling Scald on Flygon or Scizor.
Tangrowth @ Leftovers
Trait: Chlorophyll
EV's: 252 HP/252 Defense/4 Special Defense
Nature: Relaxed
Moveset: Power Whip | Earthquake | Toxic | Synthesis
Most people don't realize that Tangrowth can be one of the most effective Physical Walls in the game. Despite its defensive capabilities, Tangrowth can still hit like a truck with Power Whip and Earthquake, which has decent coverage. Toxic is to spread lovely status and Synthesis is for survivability.
Scizor @ Choice Band
Trait: Technician
EV's: 252 Attack/248 HP/8 Speed
Nature: Adamant
Moveset: U-turn | Superpower | Bullet Punch | Pursuit
Just a basic Choice Band Scizor, but it can do a lot for my team. It has a key resistance to Dragon type moves, and can counter Specs Latios well. U-turn is for scouting and I can switch into one of my walls that checks or counters. Superpower is for all those Steel Types (*cough Magnezone cough*) and of course Tyrannitar. Bullet Punch rips holes in anything that doesn't resist it (and some things that do) and Pursuit is to kill off Ghosts and Phychics like Gengar, Celebi, and Latios.
Flygon @ Choice Scarf
Trait: Levitate
EV's: 252 Attack/252 Speed/4 HP
Nature: Jolly
Moveset: Earthquake | Outrage | U-turn | Crunch
Flygon is a wonderful revenge killer with the added bonus of being my only Pokemon off the ground. Also, it can be useful as a late game sweeper with. Earthquake is there because it's the best move in the game and with STAB. Mmm. Outrage is useful late game, but only if I'm confident enough to get locked into it. U-turn is again for scouting and momentum. Crunch...it's a nice surprise on Ghosts and Phychics.
Here comes the King....
Nidoking @ Choice Scarf
Trait: Poison Point
EV's: 252 Speed/252 Special Attack/4 Defense
Nature: Timid
Moveset: Earth Power | Thunderbolt | Ice Beam | Flamethrower
Nidoking, the most vital part to my team. Toxic Spikes would ruin this team. Nidoking takes care of that. I desperately needed a Fighting resistance. Check. A pokemon that can attack from the special side? Check. Nidoking needs to stay alive for this team to work (thanks Vaporeon) and it works. Earth Power is reliable stab and can hit Conkelderr hard. Thunderbolt and Ice Beam for the BoltBeam combo. And Flamethrower is for coverage, especially for Ferrothorn, which could wall this team otherwise. Nidoking comes in late came, picks the right move and goes with it.
Well, that's my team. Please give me some feedback and suggestions on how to make it better. Thanks. (:
Here's the team...

Infernape @ Focus Sash
Trait: Blaze
EV's: 252 Speed/252 Attack/4 Special Attack
Nature: Hasty
Moveset: Stealth Rock | Overheat | Close Combat | U-turn
My one and only lead. Infernape can come in an be an instant in your face threat. Stealth Rock is Stealth Rock, Focus Sash ensures I can get that up if I want to. Overheat can cripple most anything, Close Combat is a given on Infernape sets and is useful for Chansey/Blissey. I chose U-turn over Fake Out simply because not too many people run Sash anymore and I want to be able to keep momentum. (Especially useful against Whimsicott).

Vaporeon @ Leftovers
Trait: Water Absorb
EV's: 252 Defense/248 HP/8 Special Defense
Nature: Bold
Moveset: Toxic | Wish | Protect | Scald
Oh Vaporeon, you are simply one of the best Toxic stallers in the game. Not only can you whittle opponents down with Toxic, but you also provide my team Wish support, which I need. Scald > Surf because of burn chance on Physical Attackers. Water Absorb is great for recovery on a normally crippling Scald on Flygon or Scizor.

Tangrowth @ Leftovers
Trait: Chlorophyll
EV's: 252 HP/252 Defense/4 Special Defense
Nature: Relaxed
Moveset: Power Whip | Earthquake | Toxic | Synthesis
Most people don't realize that Tangrowth can be one of the most effective Physical Walls in the game. Despite its defensive capabilities, Tangrowth can still hit like a truck with Power Whip and Earthquake, which has decent coverage. Toxic is to spread lovely status and Synthesis is for survivability.

Scizor @ Choice Band
Trait: Technician
EV's: 252 Attack/248 HP/8 Speed
Nature: Adamant
Moveset: U-turn | Superpower | Bullet Punch | Pursuit
Just a basic Choice Band Scizor, but it can do a lot for my team. It has a key resistance to Dragon type moves, and can counter Specs Latios well. U-turn is for scouting and I can switch into one of my walls that checks or counters. Superpower is for all those Steel Types (*cough Magnezone cough*) and of course Tyrannitar. Bullet Punch rips holes in anything that doesn't resist it (and some things that do) and Pursuit is to kill off Ghosts and Phychics like Gengar, Celebi, and Latios.

Flygon @ Choice Scarf
Trait: Levitate
EV's: 252 Attack/252 Speed/4 HP
Nature: Jolly
Moveset: Earthquake | Outrage | U-turn | Crunch
Flygon is a wonderful revenge killer with the added bonus of being my only Pokemon off the ground. Also, it can be useful as a late game sweeper with. Earthquake is there because it's the best move in the game and with STAB. Mmm. Outrage is useful late game, but only if I'm confident enough to get locked into it. U-turn is again for scouting and momentum. Crunch...it's a nice surprise on Ghosts and Phychics.
Here comes the King....

Nidoking @ Choice Scarf
Trait: Poison Point
EV's: 252 Speed/252 Special Attack/4 Defense
Nature: Timid
Moveset: Earth Power | Thunderbolt | Ice Beam | Flamethrower
Nidoking, the most vital part to my team. Toxic Spikes would ruin this team. Nidoking takes care of that. I desperately needed a Fighting resistance. Check. A pokemon that can attack from the special side? Check. Nidoking needs to stay alive for this team to work (thanks Vaporeon) and it works. Earth Power is reliable stab and can hit Conkelderr hard. Thunderbolt and Ice Beam for the BoltBeam combo. And Flamethrower is for coverage, especially for Ferrothorn, which could wall this team otherwise. Nidoking comes in late came, picks the right move and goes with it.
Well, that's my team. Please give me some feedback and suggestions on how to make it better. Thanks. (: