Hi, I'm having a tough time with my team, could you tell me any changes..

I reccomend that you take off swellow from your team since you will be getting another flying type when your Shelgon goes up one more level. Get a dark pokemon like Absol on your team.

I'm not good at rating teams but your Shelgon will evolve at level 50. Just 1 more level for your Shelgon..........

You train them all to lv. 100. If you need help with the pkmn leauge train walrien to lv. 50 and just use groudon on everyone exept drake. Shelgon will evolve with one more lv.

Swellow is perfect.

Make Blaziken forget strengh and teach it Blaze Kick.

Make Gardevior forget Flash and teach it Hypnosis.

Groudon is so good it want to make me cry!

Make Walrein forget Protect and teach it Ice beam or sheer cold.

Just teach Shelgon Fire Blast. He evolves at level 50 I think.

Swellow: Fair enough.
Blaziken: Lose Fire Blast and teach Brick Break.
Gardevoir: Lose Flash and teach Torment.
Groudon: Great. We're both in accord that a Groudon shouldn't waste time with Fissure and its lousy accuracy and limitations.
Walrein: Lose Hyper Beam and Protect and teach Rest and Snore.
Shelgon: It evolves on the next level. Teach it Fly and lose Dragonbreath, and at level 61 lose Dragon Claw for Crunch.

Lose the swellow and catch a Goldbat or use Rayqauza (found at the Sky Pillar... see my entry in the cheat section).

Teach Groudon Fissure (its a one hit KO move which means it misses alot, so think if you want it to learn that)

Change your Gardevoir with a better Psychic pokemon like Latios or Solrock

Shelgon only knows 3 moves? teach it Fire Blast or Flamethrower

P.S. Shelgon evolves into Salamence at level 50

Well I think Shelgon evolves at 52. I'm not absolutely sure. You've got a pretty good team but the problem is that i don't know where you are in the game. So I can't really tell you how many levels to train your pokemon. I don't know too much about swellow I have one i just don't use it much. My little brother would probaly know more about it since he always has one in his party. For Gardevoir I would take Flash out and teach it to a shroomish and withdraw it whenever you need it. Teach Gardevoit stronger moves. Physic is kind of weak. Teach Groudon Fissure so you'll have to raise him more levels. Or if you didn't get it when it said groudon was trying to learn it get a heart scale and give it to the move tutor. I'd take out Earthquake. For Blaziken it's kind of ok. Mine is level 100 and knows Flamethrower Fire Blast Dig and Blaze Kick. Walerein is good. Personnally I can't beleive you have trouble

I'd say you have a good, balanced team, but the main thing is you have to raise them to higher levels.

Shelgon evolves at level 50.