ThreeFour specific scenarios to consider when creating a visual illusion using the Minor Illusion (PHB p260) spell:
- An illusion of a mirror when the scene before the mirror changes
- An illusion of a shadowy figure when the lighting changes
- An illusion of a puddle when it starts to rain
- An illusion of a flaming torch when the lights go out
How does the illusion respond to these changes?
This is an important question for the game as illusions in D&D are potentially very powerful and have always been widely mis-understood.