Prismatic Wall

Create a shimmering multicolored wall of light, either a vertical plane up to 90 ft. long and 30 ft. high or a globe up to 30 ft. in diameter. The wall sheds bright light out to 100 ft. Creatures you designate can pass safely. Others that approach must make a CON save or be blinded for 1 minute, and passing through the wall exposes them to seven damaging and disabling color layers.