Guilder
06-01-2018

R10 Casting and x1 Mysterious Gold is required to craft this item. It can only be made in a special hidden room in the Labyrinth endless dungeon, one which contains a Stamina recovery statue. The recipe for this (as well as the coveted Minotaur's Axe ) is located in the statue.

When used, this item apparently increases the drop rate of Mysterious Gold from the treasure chest located in the Labyrinth boss rooms (B10, B20, etc.) if and when the legendarily shy Minotaur decides to put in a personal appearance. Whether or not the item also works on raising Orichalcum drops in the Temple of Poseidon's boss rooms is unknown at this time; I am not in a position to test this any longer, but feel free to share your own findings if you give it a try. Cheers.

Guilder
12-14-2018

I am told this does work in both Labyrinth and Temple of Poseidon for the boss rooms. So, it can yield double M.Gold or Orichalcum respectively, but only if:

1. You locate and defeat the boss(es) in the(ir) boss room of that dungeon
2. The person who receives the M.Gold/Orichalcum has the item effect active

And the yield is really just x1 more, so x1 Orichalcum would become x2. Cheers.