Team Swellow in OU

[Eon-Rider]

This is pretty much my first competitive Pokemon team so don't yell at me if I have some really obvious mistakes. This team is focused around Guts Activation Swellow. Please help me improve it. The team consists of three UU and three OU Pokemon.

The Team
Spiritomb

@ Leftovers
Pressure
Careful
252 HP / 140 Atk / 116 SpD
- Taunt
- Pursuit
- Pain Split
- Will-O-Wisp

Spiritomb's job is to mainly shut down some common leads such as Azelf and Gengar who pose a threat to the team. It also helps block Rapid Spin if it survives for whatever reason.

Rhyperior

@ Leftovers
Solid Rock
Impish
244 HP / 184 Def / 80 SpD
- Avalanche
- Earthquake
- Stone Edge
- Stealth Rock

Stealth Rock is a key move on Rhyperior in order to support Swellow's Facade and that small amount of damage from Stealth Rock may help to ensure the kill.

Swellow

@ Toxic Orb
Guts
Jolly
252 Atk / 4 SpD / 252 Spe
- U-turn
- Facade
- Protect
- Brave Bird

Swellow is my main sweeper. If it's in trouble against a Pokemon that threatens it with a high Attack stat, I can use U-turn to switch to Gyarados or Hitmontop depending on the type.

Hitmontop

@ Leftovers
Intimidate
Impish
252 HP / 72 Def / 184 Spe
- Toxic
- Rapid Spin
- Stone Edge
- Close Combat

Hitmontop helps counter Steel and Rock types. It's also a Rapid Spinner which helps Swellow out the next time it switches in. Stone Edge is there to counter the common Rotom who try to block Rapid Spin.

Gyarados

@ Leftovers
Intimidate
Adamant
156 HP / 108 Atk / 100 Def / 144 Spe
- Taunt
- Waterfall
- Stone Edge
- Dragon Dance

Gyarados works similarly to Hitmontop. It weakens Physical threats with Intimidate and is good for type coverage. Common counters to Swellow are Rock and Steel and Gyarados can handle the former.

Rotom

@ Leftovers
Levitate
Bold
252 HP / 168 Def / 88 Spe
- Thunderbolt
- Shadow Ball
- Will-O-Wisp
- Overheat

Rotom helps block Rapid Spinners and is a great counter to Scizor and Metagross. Rotom is also an essential Pokemon on the team because of the Nintendo Connection Tour. They are giving out the Secret Key there and I'd like to suit the theme.

Personal Opinion
I probably don't have enough special defence and I may need to replace a Pokemon with a something more special based. Metagross seems to completely obliterate my team because of Clear Body which makes Hitmontop and Gyarados less effective. >.<

Heatran ruins Rotom-H when it tries to counter the said Steel types so I need something to solve that problem.