Boost Potion Share can be cast on almost any non-barbaric potion in the caster's inventory. When cast, it causes the caster to administer 1 dose of the potion to up to four (if using a vial) or six players (if using a flask) in a 3x3 square area, including the middle square, if they have Accept Aid turned on. The player casting the spell will also be affected by the potion, although no additional dosage will be used. As with all Lunar spells, the quest Lunar Diplomacy must be completed to cast this spell.