no not at all no atleast that what i think
Seadra will only evolve during a trade while it holds dragon scale.
let it hold a dragon scale and trade it then it will evolve(dragon scales are only found on seadras sometimes when you catch them that's the only way to find them)
Seadra is a Pokemon which can only evolve via trading while holding an item called a Dragon Scale. If the player does not have a friend to trade with, or an extra console in order to facilitate the trade, it is possible to search for a Seadra with a Dragon Scale in the Global Trade System (GTS) and trade for it. The Seadra will evolve immediately when traded.
It only evolves If you trade it with a dragon scale
You catch a bagon on that little space in meteor falls (it has tm02-dragon claw on it). there isn't a big chance of finding a bagon and neither is there a big chance of getting one with a dragonscale. They are at levels 25,30 and 35. they are hard to catch so bring about 15-30 ultra balls if you plan to catch a bunch of bagon. Only the level 35 ones know dragonbreath. If you want a bagon to learn dragon claw without using the TM, you have to raise the bagon until about level 50 (mine learned dragon claw at level 49). You should give it a everstone to prevent it from evolving. Or do what I did and give it a EXP. share and every time it wants to evolve press B. Bagon are rare Pokemon so catch a bunch of them. Also there is a guy in pacifidlog who will trade your bagon for his horsea. Make the horsea evolve into seadra and give the seadra the dragonscale and trade it to make it evolve into kingdra. I hope this info gives you more help than you need. :)
Seadra evolves only if you trade it while its holding a dragon scale then take it back and it will be a kingdra instead.
you can only find it on a Pokemon and its a 5% chance of finding it SO here is a list of Pokemon (in black) who you can find it on: Horsea Seadra Dratini Dragonair Dragonite Kindra Hope this helped!
Beat the game and get access to Luminous Cave it is in wishcash pond go there with Seadra only and make all other Pokemon stand by once you get there go in and it will say do ye wish to evolve and blah blah blah say yes and you've got yourself a Kingdra
so sorry but seadra only evolves when its traded while holding a dragon scale, a nearly impossible item to get, it is very rarely held by wild horsea, seadra dratini and dragonair
In all the Pokémon games since 3rd-gen, like Sapphire and LeafGreen, there is only one way to evolve Seadra (Water) into Kingdra (Water/Dragon). At any level, Seadra can be traded while holding a Dragon Scale to a friend. Just like trading a Kadabra but regardless of whatever item Kadabra is holding, Seadra will evolve into a Kingdra in the trading process. However, beware that your Kingdra will no longer be holding the Dragon Scale, so you might want to have more than one before using one for evolving Seadra.
Seadra only evolves during a trade while it holds the item dragon scale.
try to catch horsea this Pokemon hold a dragonscale sometime but you only have 5-10% I hope it help you^^