Wizardsbane Oil
Uncommon
Coat your weapon in oil. Its targets receive a [1] penalty to 
Spell Attack Rolls and Spell Save DC, and 
Disadvantage on 
Saving Throws for maintaining 
Concentration for [2] turns.
Symbols for the eight schools of magic fluctuate in this oil - one by one appearing and dissolving in the oil, as if devoured.
How to obtain
Container *
Act 3 Reward Lower City
Act 3 Found in the world Djinni Lamp
