I have an idea for an enemy.
What if there was a rare enemy that drops valuable items after killing them. Here's the idea:
A rare enemy that has a low chance of spawning. And also drops a valuable item that can be sold with a significant amount of money. The same with ores, but more valuable. The enemy looks like a slime with a treasure inside like: (diamond, gold, neckless, or a treasure chest). A pretty big and shiny slime to be frank.
What do you think?