The goblin of greed was once a powerful and wealthy monarch, ruling over a kingdom of poor peasant who paid what meager earnings they had to him. One day though he squandered all his money in the stock market and became penniless, scrounging for loose change, taking odd jobs, and trying to sell his only remaining possession, the pot of greed.

The goblin of greed is another character like Ojama Yellow where he's largely considered a joke. He's not capable of fighting very well, but wants to keep an air of authority and regality about him that he lost a long time ago. As soon as anyone pushes back against his bravado he immediately crumbles and turns yellow. His vocal range should be very much scheming and underhanded, like he's always whispering to himself about how he's gonna stab everyone in the back before failing to execute it. Babadi from Dragon Ball and Buggy from One Piece are good starting points for the voice I want.