Spear Gauntlet (Elite)
Trap
Level 2 Elite Obstacle
XP 250

Hidden spears thrust upward from the floor in response to pressure. The individual trigger plates and spear-thrusting devices are connected to a key-operated control panel on the wall nearby.

Trap: Fifteen squares in the room contain hidden spears that thrust up to attack when triggered.Perception     DC 22: The character notices the trigger plates.     DC 27: The character notices the hidden control panel.TriggerThe trap, five squares placed randomly in the room, attacks when a creature enters one of the trigger squares or starts its turn on a trigger square. When the trap is triggered, all five spears thrust up at the same time, attacking anyone standing on a trigger square.AttackOpportunity Action      Melee
Target: All creatures on trigger squares when the trap activates.Attack: +7 vs. ACHit: 1d8 + 3 damage.Countermeasures     Athletics DC 6 or Athletics (without a running start) DC 11: A character who makes a successful check can jump over a single pressure plate square.
     Thievery DC 27: An adjacent character can disable a trigger plate with a successful check.
     Thievery DC 22: A creature adjacent to the control panel can disable the entire trap with a successful check.
     Dungeoneering DC 20: A successful check grants the party a +2 bonus to Thievery checks to delay or disable the trap.
     A character can ready an action to attack the spears (AC 13, other defenses 10; hp 10). When the spears in one square are destroyed, that trigger plate becomes useless.
     A character can attack a trigger plate or the control panel (AC 12, other defenses 10; hp 30; resist 5 all). Destroying a trigger plate renders it useless, and destroying the control panel disables the entire trap.

Published in Dungeon Master's Guide, page(s) 87.