Idea 1 fakemon:Smaragon (smaragdos-greek for emerald) A dragon that can freely control crystals and gemstones,even alter their colours.
idea 2 how to obtain: the chasm opened,but the pokémon inside are really strong,so the miners call the current champion.the player. you go in to investigate but suddenly the emstones start changing colours,before it all gets dark.You hear the screams of the miners guiding you...you get attacked by something you can't see.You defend yourself with your pokémon;the thing leaves.The lights go back on,you're all alone,the gems are still changing colours..you hear something,a whispering of some kind...'If you want to save your freinds,come follow me.Only one strong at heart can reach me....' you follow,afraid of what you might see.finally you reach a room full of gemstones,still changing colours,you see a huge green dragon...you hear the voice:'Come,come meet your end!'