Can someone tell me how to get the following pokemon: Shellgon Flygon..

To get shellgon, evole bagon
To get flygon, evolve trapinch to his final stage
To get gaile, evolve the triangle Pokemon you find in shoal cave

First Shellgon has to evolve from Bagon. He is found in the back room of meteor falls. Flygon evolves from Vibrava which evolves from trapinch.Glalie evolves from Snowrunt which you can find in an ice cave somewhere. And the purple dragon is Salamence (he is really good) he evolves from Shellgon.

To get a Shelgon you must get a Bagon to evolve into a Shelgon. Bagon will evolve to Shelgon at Lv30. To get a Flygon you must Trapinch evolve into a Flygon. Trapinch will evolve to Vibrava at Lv35 and then evolve to Flygon at Lv45. To get a Glalie you get a Snorunt into a Glalie. Snorunt will evolve to Glalie at 42.The Pokemon that has a purple body with red wings name is Salamance. And Shelgon will evolve into Salamance at Lv50.

You can get glalie by evolving snorunt, you can find him in the shoal cave (I think that's the name) at level 40 (I think).
You can get shellgon by evolving bagon
You can get flygon by evolving a trapinch

Hope I helped!

Shelgon evolves from Bagon which is found in Meteor Falls in a small room where TM02 [Dragon Claw] is found.
Flygon evolves from Vibrava which evolves from Trapinch which is found at the Desert [Route 111].
Glalie evolves from Snorunt which is found at the deep end of Shoal Cave when the tide is low. The room is basically an "ice room". He's pretty rare, so be patient.
And the Pokemon you're thinking of is Salamence. He evolves from Shelgon at level 50.

Ok, To get shelgon and the Pokemon drake uses which is salamence you have to go to meteor falls and have waterfall. You have to explore until you find a really small room with a bunch of water and the tm dragon claw. For instructions how to find it look in the walkthrough section for this game. Look around in the room until you find a Bagon, catch it. You can't then raise it and it will evolve into shelgon at level 30 and into salamence at level 50. Flygon is obtained by catching a trapinch in the desert and raising him. It will evolve into vibrava at level 35 and then flygon at 45. To get a glalie you have to visit shoal cave when the tide is low. Look around a whole bunch until you find a room that is like completely ice. Find and catch a snorunt, raise him to level 42 and you will get a glalie.

Shelgon eveloves into Salamence(purple guy and red wings)and you can get a Baggon(evolves into Shelgon) in meteor falls, but you have to have waterfall(HM8 or 9) and keep on going until you come to and area with water going straight up and a platform with a pokeball. DO NOT PICK IT UP! Run around it until you find a Baggon. Evolves into shelgon lv35. Evoles into Salamence lv55. Mine is lv99! You get Glalie by evolving Snorunt which you can get in the back off the shoal cave(behind Mossdeep). You get Flygon by evolving Trapinch into Vibrava lv(25 or 35 then evolves into Flygon lv45. Hope this helps!

Shellgon-evolve bagon
Salamance is it's name-evolve shellgon(it wont be hard)
Flygon-evolve vibrava
Glalie-snorunt
Hope I helped!

Shelgon evolves from Bagon at level 30 and into Salamence (the Pok�mon you're talking about) at level 50. Flygon evolves from Vibrava at level 45. Glalie evolves from Snorunt at level 42.

Shelgon evolves from Bagon which you can catch in the deep areas of meteor falls.
Flygon evolves from trapinch which you can catch in the desert.
Galie evolves from snorunt which you can catch at low tide in the shoal cave( in the icy part)
And that Pokemon would be Salamance and it evolves from Shelgon.