You call forth a thick cloud of bilious yellow vapors. The foul fumes overwhelm any creature within.

Daily   ✦     Arcane, Implement, Poison, Zone
Standard Action      Area burst 2 within 20 squares

Target: Each creature in the burst

Attack: Intelligence vs. Fortitude

Hit: 1d10 + Intelligence modifier poison damage.

Effect: The burst creates a zone that lasts until the end of your next turn. The zone is heavily obscured. Any creature that enters the zone or starts its turn there takes 5 + your Intelligence modifier poison damage (a creature can take this damage only once per turn). As a move action, you can move the zone up to 6 squares.

Sustain Minor: The zone persists until the end of your next turn.

Update (2/17/2012)
Changed in December 2011 updates.

Published in Player's Handbook, page(s) 161, Class Compendium.