Here is another installment of exTRAPaganza, our Thursday over-the-top trap series.
A large chest is here. Large. Really large. I mean, really, really large…
The entire floor is covered in 1 foot of water.
The lid of the chest is very heavy. It’s covered in gold foil over sodium.
A hard Wisdom (Perception) check detects the foil. If detected, an average Intelligence (Investigation) check reveals the sodium underneath.
The lid requires a hard Strength check to remove. If it is to be kept out of the water, this check is at disadvantage.
There is lots of treasure inside the chest. Unfortunately, when the chest lid hits the water is explodes.
All targets in the vicinity take massive fire and massive bludgeoning damage, with a hard Dexterity saving throw halving the fire damage.