Slateport city given to you by Captain Stern.
Depends on what you want your clamperl to be, Deepseatooth=Hauntail Deepseascale=Gorbyss (or howeverit's spelt)
Trade it holding the DeepSeaTooth or the DeepSeaScale. DeepSeaTooth will give you Huntail, DeepSeaScale will give you Gorebyss.
clamperl
It is a hold item for Clamperl and if you trade it while holding the deepseatooth it evolves into something, but the other person gets its evolved form
FIrst you must get a scanner. Then you give it to a guy in the slateport port. He will let you choose between deepseatooth and deepseascale.
for huntail,you have to trade clamperl holding a deepseatooth for gorebyss, you have to trade clamperl holding a deepseascale
you trade it with a deepseatooth or deepseascale
Clamperl when traded
The only Pokemon that evolves with the deepseatooth is Clamperl, who, using the deepseatooth, evolves into Huntail.
If you want a Huntail, get a DeepSeaTooth. If you want a Gorebyss, get a DeepSeaScale. To evolve Clamperl, trade it while it's holding one of those items.
They evolve Champerl to Huntail(need to trade Champerl with deepseatooth) or Gorebyss (need to trade Champerl with deepseascale). I love Gorebyss!
Clamperl evolves by holding a DeepSeaScale or a DeepSeaTooth and then trading it to another game, a DeepSeaTooth evolves it into a Huntail and a DeepSeaScale evolves it into a Gorebyss.