L> Help Breeding a Pokemon Pal

Can you guys tell me what you think about this team?

 Spoiler

Starmie (Anti-Lead/Rapid Spinner?) @ Leftovers
Ability: Natural Cure
EVs: 136 HP / 156 Def / 216 Spe
Nature: Timid
- Rapid Spin
- Surf
- Thunderbolt
- Recover

Dragonite (Dragon Dancer like ClawOfBeta said) @ Life Orb
Ability: Inner Focus
EVs: 248 HP / 56 Atk / 204 Spe
Nature: Adamant
- Dragon Dance
- Dragon Claw
- Earthquake
- Roost

Gengar (Choice Scarf)
EVs: 4 Def / 252 SpA / 252 Spe
Nature: Modest
- Shadowball
- Thunderbolt
- Explosion
- Focus Blast

Magnezone (Steel Killer) @ Occa Berry
EVs: 40 Atk / 252 SpA / 216 Spe (or perhaps max speed)
Nature: Timid (to outrun stuff)
- Substitute
- Thunderbolt
- Hidden Power Grass / Hidden Power Fire
- Magnet Rise

Heatran (Bribery's Suggestion for a Lead) @ Shuca Berry
Ability: Flash Fire
EVs: 4 Atk / 252 SpA / 252 Spe
Nature: Naive (+Spe, -SpD)
- Stealth Rock
- Lava Plume
- Earth Power
- Explosion

*Insert 6th Pokemon*

After some modifications, I think I will test the team out with Shoddy Battle.

While the Occa Berry on Magnezone is not standard, it probably is useful. I do recommend replacing it with the Fighting-Resist Berry, as Heatran could just absorb Fire attacks, and plus, it deals with Swords Dance Scizor better.

And you can only have 1 lead. Lol.

What kind of IVs are ideal for competitive pokemon? It's disheartening to read pokemon forums about people with perfect IVs on everything. >__> I'm thinking 31s on 3-4 useful stats. Is that ideal?

Hell, you only need perfect IVs for only Speed and HP. Speed for outspeeding, and perfect on HP so you could survive Stealth Rock 5 times or rubbish like that, and that could be could be easily remedied with HP EVs. It is beneficial to have decent IVs for other stats, though, but make sure they'll not crap like 0 IVs or something.

Edit: I also recommend posting your team on Smogon's RMT section. While some posts are rubbish, some RMT guys are really, really, good.