Pillars of Shadow
Level 17 Elite Blaster
XP 3200

Crumbling pillars across the chamber are shrouded by black mist.

Trap: When a creature uses any magic in this chamber, the nearest pillars lash out with deadly tendrils of shadow.Perception     DC 20: A character spots the shadow clinging to the pillars.Arcana or Religion     DC 20: Necrotic power imbued within the pillars is sensitive to magic.     DC 25: Radiant damage will temporarily thwart the power of the pillars.TriggerThe trap attacks whenever a creature in the chamber uses an arcane, divine, primal, or psionic power, or makes an attack that uses the enhancement bonus of a magic weapon or a magic implement, or uses a magic item power. The triggering creature is targeted by all pillars within range.Attack * NecroticFree Action      Ranged 3
Attack: +18 vs. ReflexTarget: The triggering creatureHit: Ongoing 10 necrotic damage, and the target is dazed (save ends).Countermeasures     Arcana DC 13 or Religion DC : With a successful Arcana or Religion check (minor action), a character gains a +2 bonus to Reflex against the trap’s next attack.
     A pillar targeted by a power that deals radiant damage is disabled until the end of the encounter. Before being disabled, the pillar makes an attack against the character targeting it.

Published in Dungeon Magazine 180.