Warning: contains spoilers for Doctor Strange #15Family drama is always more complicated than it looks… and none more than the relationship between Doctor Strange and his long-dead brother Victor. Brought back to life as a vampire by Stephen years ago, Victor eventually took his own life, before being trapped in the Crypt of Shadows. Now, in Doctor Strange #15, the ghost-vampire Victor is finally beginning his revenge plan, starting with the possession of his dear old brother.
https://screenrant.com/doctor-strange-brother-victor-returns-for-vengeance-in-blood-hunt/
