Verified answer

To get a Dragon scale (it is used to evolve Seadra into kingdra) you have to either find a horsea or bagon. Horseas are left of Pacifidlog where the currents are (you have to fish). Bagons are in the back cave in Meteor falls. When you find a horsea/bagon it MAY be holding a dragon scale. Use theif, covet, or catch the bagon or horsea to obtain the dragon scale. I recommend finding bagon because it is more common for it to be holding a dragon scale. Once you get the dragon scale give it to your seadra and trade it with a friend or another version (ruby or sapphire) to get a Kingdra.

hope i helped

yes bagon's are holding dragon scales when you catch them but sometimes not

catch wild bagon or horsea. Some may be holding it when caught. =)

u go to the abandoned ship and find the scanner for the guy then go to the poketch guy and then u trade evolution

you cant not not not get it (i dont know)