My first attempt at a Wi-fi team.

[Super Puppy]

I've got lots of experience with in-game teams. However, I thought I'd take a crack at competitive battling. Sooooo... this'll probably suck. Thanks in advance for any advice.

Gallade @ Razor Claw
Serious nature
EVs: 252 Attk., 252 Spd., 4 Sp. def.
Psycho Cut
Poison Jab
Close Combat
Leaf Blade

Dusknoir @ Leftovers
Careful nature
EVs: 252 Sp. def, 252 Def., 4 HP
Night Shade (100 damage)
Curse
Toxic
Mean Look

Scizor @ Muscle Band
Lonely nature
EVs: 252 Attk., 252 Spd., 4 Def.
Night Slash
Brick Break
X-Scissor
Iron Head

Tyranitar @ Focus Band
Careful nature
EVs: Unknown, but it rocks. It has impressive attack, defence, and special defence somehow. It's a wall and physical attacker.
Dragon Claw
Earthquake
Avalanche (it's pretty slow)
Crunch

Rayquaza @ ??? (swaped with Salamence when not allowed UBERs)
Rash nature
EVs: Also unknown. Special attack and speed are fabulous, so it's a special sweeper.
Thunderbolt
Surf
Flamethrower
Dragon Pulse/ Draco Meteor

Erm... I'm still working on this last one. Right now I have a Dragonite as a Physical Attacker, but that throws my balance off horribly both EV-wise and type-wise. I need a special sweeper here. Any ideas for a good one for this team?

Okay, there you have it. Huzzah for the suckish n00b team. PWEASE HALP MEEE! ^_^;