Fanonomicon: Volume #2

An Explosive Surprise (trap idea)

Here's one for you Dm's that want a trap that a little bit combustive.

The players are walking about in a dungeon when all of a sudden they trigger a trap. The first thing they will notice is a sizzling sound. After a little while they will start to smell smoke & then eventually burnt gunpowder. If they don't catch the hint that something is about to explode & end up stay by the explosive, they will have to make a dex save to not get hit by the expulsion. (If they do get hit, dm should decided how much damage it does, but it should be on the higher end if they ignored the signs of the explosion coming up.