Absolute Transmutation

Choose one creature you can see within range and choose acid, cold, fire, lightning, or thunder. The target must make a CON save or become vulnerable to the chosen type and lose immunity and resistance to it for the duration. The target repeats the save at the end of each of its turns.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.