Book of Enchantments
This ancient tome is the grimoire of Nicodemus, an enemy of Doctor Strange. It contains the Exorcism of Transferral, by which the user can completely and permanently drain the mystical knowledge, powers, and aura from another mage and transfer them into himself. This enchantment was also kept on computer tapes by Nicodemus and used in conjunction with a machine. The power can be returned to the former owner only by another use of the Exorcism of Transferral.