I'm pretty new to competitive battling, and this is my first team. There are obviously some flaws here, and some help would be awesome.
Forretress
Relaxed, sturdy, 252hp/4d/252spd, Shed shell
Toxic Spikes
Rapid Spin
Gyro Ball
Earthquake
Not much to explain here. This is my lead. Should I keep both attacks, or should I add spikes? I might remove earthquake, since it's so slow and it can't take a fire attack.
Vaporeon
Bold, water absorb, 248hp/252d/8spe, leftovers
Wish
Protect
Scald
Roar
Good at stalling, especially with double toxic spikes. Roar works well if I manage to set up entry hazards. Wish + Protect + Leftovers is great for healing, and scald has a decent chance of burning.
Heatran
Modest, Flash Fire, 252spa/4spd/252spe, air balloon
Flamethrower
Earth Power
Hidden Power Ice
Stealth Rock
Heatran works well with Vaporeon because it resists grass attacks, and Vaporeon can also switch in on water types attacking it.
Machamp
Adamant, no guard, 128hp/252a/128spd, leftovers
Substitute
DynamicPunch
Payback
Stone Edge
I chose Machamp because of No Guard + Dynamic Punch. Stone Edge is also 100% accuracy.
Gengar
Timid, levitate, 4hp/252spa/252spd, leftovers
Substitute
Disable
Shadow Ball
Focus Blast
Gengar has an awesome SpA and SpE.
Dragonite
Adamant, inner focus, 60hp/252a/196spd, choice band
Outrage
ExtremeSpeed
Fire Punch
Earthquake
And finally, a choice band Dragonite, another physical attacker.

Forretress
Relaxed, sturdy, 252hp/4d/252spd, Shed shell
Toxic Spikes
Rapid Spin
Gyro Ball
Earthquake
Not much to explain here. This is my lead. Should I keep both attacks, or should I add spikes? I might remove earthquake, since it's so slow and it can't take a fire attack.

Vaporeon
Bold, water absorb, 248hp/252d/8spe, leftovers
Wish
Protect
Scald
Roar
Good at stalling, especially with double toxic spikes. Roar works well if I manage to set up entry hazards. Wish + Protect + Leftovers is great for healing, and scald has a decent chance of burning.

Heatran
Modest, Flash Fire, 252spa/4spd/252spe, air balloon
Flamethrower
Earth Power
Hidden Power Ice
Stealth Rock
Heatran works well with Vaporeon because it resists grass attacks, and Vaporeon can also switch in on water types attacking it.

Machamp
Adamant, no guard, 128hp/252a/128spd, leftovers
Substitute
DynamicPunch
Payback
Stone Edge
I chose Machamp because of No Guard + Dynamic Punch. Stone Edge is also 100% accuracy.

Gengar
Timid, levitate, 4hp/252spa/252spd, leftovers
Substitute
Disable
Shadow Ball
Focus Blast
Gengar has an awesome SpA and SpE.

Dragonite
Adamant, inner focus, 60hp/252a/196spd, choice band
Outrage
ExtremeSpeed
Fire Punch
Earthquake
And finally, a choice band Dragonite, another physical attacker.