you have to get a blue shard and then give it to shard dude (i dont know his name)

BLUE SHARD=WATERSTONE

RED SHARD=FIRESTONE

YELLOW SHARD=THUNDERSTONE

GREEN SHARD=GRASSSTONE

yellow shard and red shard and green shard

Red Shard

Blue Shard

Yellow Shard

Green Shard

Violet City and Fuchsia City

well, you give them to the shard maniac guy near mossdeep (on a small island due west, he's in a house) he swaps them for evolution stones. Your green shard would get you a leaf stone, red shard a fire stone, blue shard a water stone and yellow shard, a thunder stone Hope that helps well, you give them to the shard maniac guy near mossdeep (on a small island due west, he's in a house) he swaps them for evolution stones. Your green shard would get you a leaf stone, red shard a fire stone, blue shard a water stone and yellow shard, a thunder stone Hope that helps