Selma Tolon was a Turkish doctor working with a Turkish relief group: The Red Crescent. When a terrible earthquake happened, she went to the disaster scene to help. Falling into a hole opened because of the earth-quake, she found the artifacts hidden by the wizard Merlin after the defeat of Sultan Suleiman the Great by a demon called Etrigan ages ago.
She carries the Eternity Book of the wizard Merlin, which helps her to cast magical spells, but she has not mastered the use of it yet. She also wields the mystical scimitar of the Sultan Suleiman the Great. (Kanuni Sultan Süleyman - an old Ottoman empire) These artifacts have given her great strength, stamina, fighting powers and ability to fly.
She aided the Justice League in the Pre New 52 world and hasn't been seen since.