Potion

Potions in Overlord are medicinal substances that treat or strengthen the body, and healing potions are the type that matters most. They were a common commodity among the players of Yggdrasil, where around two hundred kinds could be made by the time the guild Ainz Ooal Gown was founded. Yggdrasil's potions are red, and the inhabitants of the New World call them God's Blood for that color and for what they do. New World potions are blue instead: the alchemy always turns that way during production, red is achieved only very rarely, and no apothecary has reproduced God's Blood, which has left people joking that the gods must be blue blooded. Ordinary healing solution degrades over time and is held with a Preservation spell, while God's Blood keeps indefinitely without one. A bottle sells for eight gold pieces before any added value, enough that carrying one makes a person worth robbing.