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Compression TunnelHazard 20

Legacy Content

Uncommon Complex Magical Trap 
Source Pathfinder #186: Ghost King's Rage pg. 61
Complexity Complex
Stealth DC 51 (legendary)
Description This shadow tunnel compresses when creatures pass through.
Disable DC 46 Athletics (legendary) twice to push back the shadows or DC 48 Thievery (legendary) three times to pierce through the shadows
Shudder [reaction] Trigger A creature reaches the tunnel's midpoint; Effect The tunnel shudders, knocking creatures prone unless they succeed at a DC 42 Reflex save. The trap then rolls initiative.
Routine (1 action) The tunnel compresses, crushing all creatures in it and dealing 4d10+22 bludgeoning damage (DC 42 basic Fortitude save). On a failed save, a creature additionally becomes immobilized (Escape DC 42).