Silent Image - how would you rule this?

[Melvin the Mediocre]

I may pull this tactic in a game soon, I wonder if I am making things to hard on my dm. I was thinking of using silent image to block off everything in the area with complete blackness (like magical darkness) and highlight all the enemies in a colored outline (like faerie fire.)

Does it seem to powerful? Is there a reason it shouldn't work?

If you were the DM would you give the creatures in the darkness an auto save to perceive they were in an illusion counting the round they stumbled around in it as a standard action to interact with the illusion?

[Emmit Svenson]

My ruling would be that creating an area of darkness is within the power of a Silent Image, or giving a single other creature a glow is within the power of a Silent Image. I would not let a caster do both with one casting. (“This spell creates the visual illusion of an object, creature, or force, as visualized by you.”--note AN object, creature or force, singular.)

I would also rule that anyone who was inside or came into contact with the area of darkness would be interacting with it, and so receive a saving throw, as would anyone studying it from a distance.

[DesolateHarmony]

Don't let silent image get into the business of glamers. They are different things.

[Melvin the Mediocre]

Emmit Svenson wrote:

(“This spell creates the visual illusion of an object, creature, or force, as visualized by you.”--note AN object, creature or force, singular.)

Thanks, I believe you are correct.

[Paulicus]

You could also create a big arrow over an enemy's head, which would be less controversial possibly.