Level 20 Obstacle
The illumination you bring to these lightless depths is suddenly swallowed by a roiling cloud of absolute darkness.Hazard: The necroclasm cloud fills an area 4 squares on a side.Perception DC 27: The character notices the exceptional darkness in the water.Trigger The necroclasm cloud attacks when a creature enters any of its squares.
AttackImmediate Interrupt Melee
Target: The triggering creatureAttack: +23 vs. FortitudeHit: 2d8 + 6 necrotic damage, the target is blinded and takes ongoing 15 necrotic damage, and the necroclasm cloud shrinks from its space to occupy the target’s square (save ends all). When the target saves, the cloud expands in a close burst 4 from the target’s square.
Published in Demonomicon, page(s) 70.