Rate My OU Team

Azelf (Timid) @Focus Sash
EVs:255 Sp.Atk/255 Spd
Psychic
Flamethrower
Signal Beam
Nasty Plot
Azelf Nasty Plots untill hes brought to his sash, then he sweeps.

Infernape (Lonely) @Life Orb
EVs:255 Atk/255 Spd
Close Combat
Flare Blitz
Thunderpunch
Overheat
Infernape uses Overheat on low Sp.Def Pokemon, but its only a 1-time use. Thunderpunch is for Waters.

Starmie (Timid) @Wise Glasses
EVs:255 Spd/255 Sp.Atk
Ice Beam
Thunderbolt
Psychic
Hydro Pump
Starmies just a sweeper. I have Hydro Pump instead of Surf because I take risks of lower accuracy for more power.

Electivire (Adamant) @Expert Belt
EVS:255 Atk/255 Spd
Thunderpunch
Ice Punch
Earthquake
Cross Chop
Electivire has an Expert Belt because his moveset covers most Types.

Weavile (Jolly) @Muscle Band
EVs:255 Atk/255 Spd
Night Slash
Ice Punch
Ice Shard
Iron Tail
Iron Tails a filler, I couldnt come up with a better attack. Maybe Fake Out?

Shaymin (Modest) @Wise Glasses
EVs:255 Sp.Atk/255 Spd
Seed Flare
Earth Power
Air Slash
Synthesis
Earth Powers a filler, Synthesis for recovery if possible, and Air Slash for Serene Grace Flinch hax.

You seem to have a serious weakness to Scizor. Nothing can switch in safely to it (X-Scissor/Superpower destroys the team) and two of your Pokemon are OHKO'd by Bullet Punch (Azelf and Weavile).

At the same time, Electivire seems to be the weak link on the team--he can't switch in easily and he's not fast enough to sweep without Motor Drive. Only one of your team members can lure electric attacks, Starmie, and most people just take Starmie down with powerful STAB moves.

So what I'd recommend is replacing Electivire for something that deals better with Scizor.

Meanwhile, leading with Azelf is a bad idea. The set is great but should be saved until late in the game when your opponent's team is in bad shape. The problem with trying to pull it off so early is that your opponent is going to easily switch in a counter or beat you with priority moves (ex: Scizor/Lucario).

So...now we need a good Scizor counter that can lead and go over Electivire without bringing weaknesses to the team or ruining the offensive strategy you have going on.

Immediately, two Pokemon come to mind--Heatran and Gyarados. A lead Heatran with Stealth Rock/Fire Blast/Earth Power/Explosion and a Shuca Berry, Leftovers, or Sash will do this team good. It covers many random weaknesses on the team while also setting up rocks for you and taking out Pokemon. Plus, it can switch into Scizor's Bullet Punch, U-Turn or X-Scissor. Just watch out for Superpower. Heatran can also revenge kill Scizor very easily.

Gyarados is another nice option, being able to lead well thanks to Intimidate and counter Scizor. The set that would probably work best would be the BulkyGyara set on Smogon (http://www.smogon.com/dp/pokemon/gyarados). It can switch into Scizor repeatedly and threaten to set up Dragon Dances.

So, now we have Heatran or Gyarados leading plus Infernape/Starmie/Weavile/Shaymin/Azelf.

The only other major change I'd recommend is getting Rapid Spin on Starmie to spin away Stealth Rock. That will keep Azelf's Sash safe and also make it easier for Weavile (and Gyarados, should you decide to use him).

ok thanks!