i do not think you can but you can take Pokemon to the heartscale guy and see if that move is compatible with any of your Pokemon you give him a heartscale that you find under ground he collects them
Mistralton City the house next to the entrance for a heartscale
Pokemon such as eevee, growlithe, and vulpix.
Pokemon Ruby has Pokemon that Pokemon Sapphire does not and Pokemon Sapphire has Pokemon that Pokemon Ruby does not.
You can trade from Pokemon Ruby to another Pokemon Ruby using a link cable.
You can find them on Luvdisks in Pokemon Emrald and Ruby and Sapphire, and you find them underground in Pokemon diamond
eat hearts
i do not think you can but you can take Pokemon to the heartscale guy and see if that move is compatible with any of your Pokemon you give him a heartscale that you find under ground he collects them
By going underground and digging.
Mistralton City the house next to the entrance for a heartscale
None of the Pokemon do, silly! :D you get the heartscale by digging it from the underground. (be careful, their small!! if you go to pastoria, there is a guy who will teach your Pokemon a forgotten move if you give him a heartscale. his house is next to the lake.) *hope this helped*
Dig for it underground. Its rare but it is possible to dig one up
Pokemon such as eevee, growlithe, and vulpix.
I don't think it's obtainable in Ruby.
Pokemon ruby's version IS Pokemon ruby.
Pokemon Ruby has Pokemon that Pokemon Sapphire does not and Pokemon Sapphire has Pokemon that Pokemon Ruby does not.
ruby