Mirror image spell cast by enemies cause the enemy to multiply and all image is able to cast fully effective spells.
Detailed Spoilery description:
More specifically Auntie Ethel whipped the floor with my party. As I cast in the first turn a witch bolt on her, I knew which one was the original, I kept attacking her, and in the next turn the images just cast one spell each at my party.

Last edited by Godfrid; 07/10/20 10:38 PM.