The Floor is Lava (5e Trap)
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The Floor is Lava[edit]
Magical trap
Colorful sand coats sections of the ground. If a creature steps on the sand, it magically turns into lava, and all creatures touching it must make a DC 15 Dexterity saving throw, taking 2d8 fire damage on a failed save, or half as much damage on a successful one. All of the sand in the room then turns into lava which proceeds to spread out and coat the entire floor of the room. Any effect that deals cold damage can turn a 10-foot cube of lava into stone which can be walked on without harm.
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