Tiamat Doors (Elite)
Trap
Level 26 Elite Blaster
XP 18000

Trap: Each door is shaped to resemble a chromatic dragon head. This trap consists of ten doors, one of which is the real exit (randomly determined). Each of the doors generates blast of energy comparable to a dragon’s breath weapon.Perception     No check is required to spot the doors, or the fact that each boasts an image of one of Tiamat’s heads.Arcana     DC 32: The character recognizes the trap for what it is.TriggerWhen a creature starts its turn within 3 squares of a door, opens a door, or attacks a door, all the doors attack.Attack • Acid, Cold, Fire, Lightning, PoisonOpportunity Action      Close blast 4 (marked on map)
Target: All creatures in the areaAttack: +28 vs. ReflexHit: 2d6 + 6 damage, and ongoing 10 damage (save ends).Miss: Half damageSpecial The damage type depends on the door.
Doors 1 and 8: Fire
Doors 2 and 6: Lightning
Doors 3 and 7: Cold
Doors 4 and 10: Poison
Doors 5 and 9: Acid
Countermeasures     Arcana DC 27 or Thievery DC 27: Standard action. An adjacent character can prevent a door from triggering when it is opened. The other doors still trigger when the disabled door is opened.
     Arcana DC 30: Standard action. An adjacent character can prevent a door from triggering the others when opened. The disabled door itself is still triggered when opened.
     * A character can attack a door (AC 38; Defenses 38; hp 70). When reduced to 0 hit points, the door turns to dust, leaving behind a blank wall (or the exit) and ceasing its attacks.
     * Disabling half the doors in any way disables the entire trap.

Published in Dungeon Magazine 160, page(s) 76.