nothing
To evolve it, you have to give it a Deep Sea Tooth (Huntail) or a Deep Sea Scale (Gorebyss) and trade it.
If you give it to a Clampearl and then trade said Clampearl it will evolve into Huntail or if you give Clampearl a Deep sea scale and trade it it will evolve into a Gorebyss
Clamperl can only evolve into Gorebyss if you give it a Deep Sea Scale to hold and then trade it.
you can evolve a Pokemon by raising it up to the level it needs to be,give it stones,and last but not least giving it other items.for example to get a clampearl to evolve you give it a deep sea tooth or deep sea scale and make a trade.
give to hold and then pkmn trade to make clamperl evolve into a gorebyss.
You get an option of either the Deep Sea Tooth or the Deep Sea Scale. Both items evolve Clamperl when it's holding 1 and it's traded to another player. Deep Sea Tooth evolves it into Huntail while Deep Sea Scale evolves it into Gorebyss.
You have to give the Seadra a Dragon Scale then trade it (and back) and it will evolve into a Kingdra.
you must get a horsea and evolve it to seadra then give it the dragon scale and evolve it again then u get a kingdra
You do not have to give Feebas a Water Stone to evolve it. To evolve Feebas you need to trade it while it is holding a Prism Scale.
give it a dragon scale. Sorry
get one of those pearl things and level up your clamperl to a lvl. 20. once you do that, give the clamperl the pearl thing.
To evolve Clamperl, you need to give it either the Deepsea Tooth or the Deepsea Scale, then trade it. It will then evolve into either a Huntail or Gorebyss, depending on which item you make it hold. A Clamperl with a Deepsea Tooth will evolve into a Huntail, and a Clamperl with a Deepsea Scale will evolve into a Gorebyss.