Tutor of Death

Search your library for a card, put that card into
your hand, then shuffle.

The ancient Singer shadows exist similarly to spren until they take over a singer body. A living Singer must open itself up to the bonding during a highstorm or the Everstorm. Then, in a process that causes intense pain to the host, the Fused takes over
the body of one of these willing, open Singers.

based on Demonic Tutor