Thanks for your reply.
I played version 1.100 so I'm not aware of any berry other than Oran, Leppa and Lum. From my experience, glyph nodes are relatively rare to be seen, let alone the right one I need.
Your suggestion seems nice. I totally agree that some pokemon-specific glyphs would make the game more fun than it already is.
Currently, pokemons in this game are mostly distinguished by their base stats and sometimes their typings. Blastoise and Vaporeon usually serve different roles in battles in the main series. However, they are pretty much the same in this game due to the lack of abilities and physical/special split. It also doesn't help that there are an excessive number of Water-type pokemons in Gen I and II. The glyphs may help diverge their roles.