Twilight Alchemy I uses the Spirits from the Alchemist Spirit skill to help you create White Potions extremely fast. When you begin casting, you will attempt to create 200 White Potions, one every 0.005 seconds. In order to cast Twilight Alchemy I, you require to have all the items you would need to create 200 White Potions normally, and the success rate is no different than if you made them one at a time. On iRO, this skill is localized as Spiritual Potion Creation (variant 1).