Resting in a small chest set on a pedestal kept in a room populated with various artifacts lay two spheres that could fit both hands. One, glowing a brilliant blue-white, as a flame. The other darker than the blackest night.
God of Strength in the Night, Hiding your Numbers, and The Silent Kill.
An alchemist enchanted his equipment to produce even more powerful alchemical compounds, potions and the like. Unfortunately, it is not well-known that he had different sets of equipment for different processes: If the wrong set of gear is used, the result will invariably fail to function. It's not a cursed item, just something that's hard to figure out.