"You spill some liquid and infuse it with energy, creating a defensive wall of acidic fumes." (EPG 48)
Daily Attack Power
Tags: Acid, Arcane, Conjuration, Implement
"Standard Action"
"Area: wall 5 within 10 squares"
"Effect: You conjure a wall of acidic fumes. The wall can be up to 2 squares high and must rest on a solid surface, and it lasts until the end of your next turn. The wall is difficult terrain, and its squares are lightly obscured. Any creature that starts its turn within the wall or adjacent to it, takes acid damage equal to 1d6 + your Intelligence modifier."
"Sustain Minor: The wall persists"