A wall of black flame rises from the floor at your behest. It protects you while unleashing gouts of fire on foes.

Daily   ✦     Arcane, Conjuration, Fire, Implement
Standard Action      Area wall 3 within 1 square

Effect: You conjure a wall of flame that is up to 3 squares high and lasts until the end of the encounter. The wall blocks line of sight.
Entering a wall square costs 3 extra squares of movement. Each creature that starts its turn within the wall's space takes 2d10 + your Constitution modifier fire damage, and any creature other than you that starts its turn adjacent to the wall takes 1d10 + your Constitution modifier fire damage.
As a move action, you can move the wall to a space adjacent to you. Once per round, you can use the Forbiddance of the Ninth Attack power, which must include at least 2 wall squares in the blast.