You create a zone of complete, impermeable darkness filled with flying, fluttering, fanged shadows. The shadows rend at the very life force of creatures caught within.

Daily   ✦     Arcane, Implement, Necrotic, Zone
Standard Action      Area burst 1 within 10 squares

Effect: The burst creates a zone of darkness until the end of your next turn, blocking line of sight. Creatures that enter or start their turns in the zone take 2d10 necrotic damage (a creature can take this damage only once per turn).

Sustain Minor: The zone persists until the end of your next turn, and you make a secondary attack.

  Secondary Target: Each creature within the zone

  Secondary Attack: Constitution vs. Fortitude

  Hit: 1d6 + Constitution modifier necrotic damage.

Update (8/12/2011)
Updated in Class Compendium.

Published in Player's Handbook, page(s) 134, Class Compendium.