I think this would be a nice idea, but first I'd like the whole light and shadows mechanics to get a bit of fixing.
I recently had the experience of trying to fight a giant spider, this giant spider was in a dark cave, so it would shrouded in shadows, makes sense. So i cast light on my fighter's weapons, thinking "this'll light up the area, and surely help them fight that beasty" No dice, still shadows. Then I had the bright (heh) idea of pouring fire underneath the enemy. Can't be in shadows if your're on fire right? Yeah, it was still in shadow.
Cue the rest of us flailing ineffectively while lit up and on fire, while Astarion, being the only party member with darkvision, actually killed the thing.
Not even going to go into the whole silence not working right half the time issue.
