As the Auctioneer said, this mutant Fire Stone contains not only the rich Fire Type, but also a certain grass Attribute energy. Through the inspection of scientific instruments, the energy structure in the mutated Fire Stone is also fully revealed.
You enter the cheat code the same as the other ones, but the first line code is a bit longer.
Cross the bridge that’s connecting North Lake Miloch to Motostoke Riverbank.
(: 0) A glowing red stone filled with fire energy.