Answer:Guillotine (for its guillotine-like wings)
Swellow Salamence
salamence
You haven't given any details so I do not know. But they evolve at Level 40 into Salamence. Salamence is a very good Pokemon I'm guessing. So just keep working on Shelgons exp bar until evolution and try to get a decent Salamence! Hope I helped :)
www.smogon.net/salamence
salamence
dragon claw,ice beam,flamethrower,thunder.
A very good team!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
metagross salamence flygon blaziken swampert sceptile
catch bagon at meteor falls and evolve it into shellgon then evolve it to SALAMENCE bagon lv31 shellgon lv50 salamence
Salamence is the final form, it cannot evolve afterwards.
Shelgon evolves into Salamence at LV. 50