I was thinking about this earlier so im writing this now.
IDEA FOR AN EDDSWORLD EPISODE:
Demon Dundrum (what i think they should call it) So basically what I think would happen was Matt buys a Mirror from a shack owned by a Satanist, And basically the mirror isn't just any mirror, Its a literal portal to a hell - like village. And so Edd and the gang are totally oblivious to were they are and think its the "heavens", and then they meet a girl named Angel who is in disguise as an angel but is actually a imp trying to kill them so they're stuck at the Dundrum. Soon Angel gets angry because they won't fall in her trap and breaks character showing her 'true colors'. So then the guys realize they're in the hellhole and jump in the mirror and get home, soon after they break the mirror and forget about it.
SORRY IF ITS BAD TO ME IT SOUNDS COOL- (ayo this would strangely make a good Hazbin hotel/ Helluva boos X Eddsworld crossover)