"I know it might seem unorthodox, but it's the only logical solution. You simply can't introduce a new tier of currency without badly upsetting the already existing balance. You'll also be getting back precious iron, which, I assume, will be severely needed in the future. As for the exchange rate, I'd go for 100 iron coins in exchange for 1 gold coin"
Derrick was still uneasy with the answer, but it at least made more sense to him.
But before he could tell Lacha to go forward with the plan, Kuro interjected once again.
"However, you can't faze it out until you introduce copper coins"
Derrick was now confused. Why couldn't he simply replace all the iron coins with gold coins?
Kuro loudly sighed, irking Derrick.
The necromancer was clearly out of his element, and being taken for a fool just made him want to slap the old fool.