Hmmm... Might as well put in my first ideas!
First stage: Grubrum
A pun on grub (a larva) and Cuprum (Latin for bronze).
Second Stage: Argallant
A pun on Argentum (Latin for silver) and gallant, another word for a knight.
Just putting in my two cents. These are by no means final.
"Video games are bad for you? That's what they said about rock and roll." -Shigeru Miyamoto