Caustic Formulae

D&D 2024 optional feature: Caustic Formulae. Source: GuideDrakkenheim. feature type ET, prerequisite Level 6+ Esoteric Theory Once per turn when you deal damage to a creature or object with an apothecary spell, you can expend an apothecary spell slot to deal 2d4 extra acid damage to that target, plus another 2d4 per level of the spell slot. Level 6+ ET