Wall of fire

Flat wall, no bends or turns. Surface must be capable of supporting the caster standing upright without possibility of collapse or spell fails. 8 squares total, +1 per level after gaining this spell. Up to 8 squares wide max, and 4 squares high max. Creatures can run through the wall, but take 2d6 fire damage (energy) and must make a MAG check or have this total halved. You may expend a season of your life to bind the spell to you (permanent until you are killed). You may have 1/3/5 of these active at any one time. 8+1/Mlevel 5'x5' panels.