Quicksand

Complex Environmental

Stealth +12 (trained) (or –10 and no minimum proficiency if the surface is disturbed)

Disable DC 18 Survival (trained) to disturb the surface

Submerge [Free Action]

Routine (1 action) On its initiative, the quicksand pulls down each creature within it. A creature that was submerged up to its waist becomes submerged up to its neck, and a creature that was submerged up to its neck is pulled under and has to hold its breath to avoid suffocation.

A creature in the quicksand can attempt a DC 20 Athletics check to Swim to either raise itself by one step if it’s submerged to its neck or worse, or to move 5 feet if it’s submerged only up to its waist. On a critical failure, the creature is pulled down one step.

Level 3 · Complexity Complex

Stealth +12 (trained) (or –10 and no minimum proficiency if the surface is disturbed)

Disable Survival DC 18 (trained) — to disturb the surface

Trigger A Huge or smaller creature walks onto the quicksand

Effect The triggering creature sinks into the quicksand up to its waist. The quicksand rolls initiative if it hasn’t already.

Reset The hazard still submerges anyone who walks in, but the surface doesn’t become hidden again until it settles over the course of 24 hours.