Potion legendary
This purple potion glows with a soft violet light and constantly swirls with multiple rainbow-hued bubbles. When you drink this potion, your magical power amplifies and several glowing, purple arcane symbols appear all across your body. All spells casted by you act as if you were using a spell slot that is 2 levels higher, up to a maximum of 9th level. This potion’s effects cannot be dispelled and last for 10 minutes, after which the magical symbols dissipate into a faint aura before disappearing entirely.