Ruby Team:

Kecleon 30 @ None
Color Change
Naive
- Faint Attack
- Fury Swipes
- Psybeam
- Screech

Swampert 36 @ Amulet Coin
Torrent
Brave
- Strength
- Take Down
- Mudshot
- Surf

Swellow 27 @ Quick Claw
Guts
Timid
- Fly
- Wing Attack
- Aerial Ace
- Quick Attack

Graveller 29 @ Soft Sand
Rock Head
Quirky
- Strength
- Magnitude
- Rollout
- Rock Tomb

Absol 30 @ None
Pressure
Naive
- Quick Attack
- Facade
- Thunderbolt
- Swords Dance

Tropius 27 @ None
Chlorophyll
Sassy
- Growth
- Razor Leaf
- Stomp
- Sweet Scent

You should add a Fire Type and a Pyscic type to the team and get rid of Kecleon and Absol.

CaptainObvious said:

Kecleon 30 @ None
Color Change
Naive
- Faint Attack
- Fury Swipes
- Psybeam
- Screech

Swampert 36 @ Amulet Coin
Torrent
Brave
- Strength
- Ice Beam
- Earthquake
- Surf

Swellow 27 @ Quick Claw
Guts
Timid
- Fly
- Steel Wing
- Aerial Ace
- Quick Attack

Graveller 29 @ Soft Sand
Rock Head
Quirky
- Strength
- Magnitude
- Rollout
- Rock Tomb
I haven't used Graveler so I can't say much.

Absol 30 @ None
Pressure
Naive
- Quick Attack
- Shadow Ball -You can get the TM at Mt. Pyre.
- Thunderbolt
- Swords Dance

Tropius 27 @ None
Chlorophyll
Sassy
- Growth
- Magical Leaf
- Stomp
- Aerial Ace -You get the TM for beating Winona.

Click to expand...

You could really use a fighting type as well as a fire type.

If you want to keep you current team, you could give Graveler brick break. Since Kecleon can learn just about any move, I would suggest giving him a fire type move.

If you don't mind changing pokes, swap Graveler for a Numel. And Kecleon for a Machoke/Hariyama/Meditite.

Also, I like to have each poke with no more than 2 STAB (same type attack bonus) moves. ie: Marshtomp (water/ground) with Surf and Earthquake. And the other moves to have good coverage for other types, so each pokemon can handle more than 2 types.

Note: The moves in red are what I would do. If not, I suggest doing something similar.

Hope I helped!