Mutagenic Renovator
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This sludgy concoction is said to be derived from liquefied mutant scales. For 1 hour after you imbibe the potion, your skin warps and mutates to grant you resistance 5 to one type of energy damage. When you first drink the potion, choose either acid, cold, electricity, fire, or sonic damage. The potion starts by granting you resistance against this type of damage. Each time you take damage from one of these listed energy types other than the one you currently resist, your skin mutates, causing you to lose the energy resistance previously granted by this potion and gain resistance to the type of energy by which you were most recently damaged, and the potion's duration decreases by 10 minutes. The resistance shifts only after you take the damage, so it doesn't apply to the first instance of damage
Traits
An item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
Something with the magical trait is imbued with magical energies not tied to a specific tradition of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
A potion is a magical liquid activated when you drink it.