Needling Stairs

Level 11Hazard (Complex)
HazardMediumLegacy
AC 28
HP 25 (BT 12)
Speed 0 ft.
Fort +22
Ref +19
Will +0
Perc +0
Size Medium
Common
Complex Hazard
Stealth +20
Disable DC 33 thievery (master) on each stair to disable its spring, or deactivate the switch in area C8 to deactivate the whole trap. Cutting the wire on the topmost stair (Disable device) that connects the staircase to the control switch prevents the control switch from turning the trap on or off.
Immunities precision, critical hits
Recall Knowledge arcana DC 28

Attacks

Melee Poisoned Needle +24/+19/+14
Damage: 2d6+8 piercing + 1d6 persistent bleed + 4d6 persistent poison

Abilities

First Step

Trigger A creature ends its movement on one of the stairs --- Effect The trap makes a poisoned needle Strike against the triggering creature, then rolls initiative.

Bloody Feet

Trigger A creature moves onto an active step --- Effect The trap makes a poisoned needle Strike against the triggering creature.

Description

This staircase has springs in each step, which send poisoned needles shooting up through tiny holes in the wood when stepped on. Each step, 6 in total, takes up one 5-foot square.