Arkane

As a bonus action you may consume this potion to gain the following benefits:

You feel the power of wild magic surge through your veins.  Roll a d20. On a roll less than 6, roll on the wild magic table. Each use within 7 days increases the roll by 1. If you roll a 1, instead the magic consumes you in a fiery explosion. Each creature within 10 feet of you must make a DC15 Dexterity saving throw. On a fail, affected creatures take 6d6 fire damage, or half as much on a successful one.  On your next hit with a melee attack, you deal an extra 2d6 fire damage. 

If you are a wild magic Sorcerer, instead roll a d20. On a 1-15, add one extra damage die to your next spell. on a 16-20, add two damage die instead. On your next wild magic surge, the DC increases to 6. Each use within 7 days increases the roll by 1. 

This potion is extremely addictive. If consumed 3 times within 7 days by a creature with no magical capabilities, each day for the next 7 days, extended by 7 days for each additional consumption, the creature must make a DC 10 wisdom saving throw, or be compelled to find an additional potion for the next 24 hours. 

This potion may be crafted by a Wild magic Sorcerer with proficiency in an Alchemists kit. It costs 25gp of materials and 1 hit die during a short or long rest.