Potion of Acid Retaliation (Moderate)

For 1 minute after drinking a potion of acid retaliation, you glow with a faint aura of acid energy, and a creature that touches you (such as by making an unarmed attack or using a spell with a range of touch against you) or is adjacent to you and hits you with a melee weapon strike takes acid damage.

The aura deals 2d4 acid damage.