you can buy one in the pokeathon dome for 3000 points.
you can evolve a gloom into a vileplume or a sunkern into a sunflora with a sun stone in PKMN SS versionGloom evolves with a Sun Stone into Bellosom in Pokemon SoulSilver.
You have to use the sun stone on sunkern at any level but it is hard to get a sun stone in soul silver.
You can have one by winning the Bug Catching Contest
Gloom will evolve into a Bellossom and Sunkern will evolve into a Sunflora.
There is no such thing as a legend stone in pokemon.
you use it on some water type Pokemon to evolve them. example:pikachu+thunder stone example:polywhirl+water stone example:evee+fire stone example:Roselia+sun Stone example:murkrow+dusk stone a ever stone prevents your Pokemon from evolving
You'll need to give it a Leaf Stone to evolve it into Vileplume or use a Sun Stone to evolve it into Bellossum.
you can get a sun stone by coming in first in the Pokemon bug catching contest. you have to catch a lv.19 weedle to win. on thursdays
evolve pokemon
water stone
It evolves togetic into togekjssevolve pokemon
togipi