History
Doctor Strange's history is presumably similar to his Earth-616 counterpart's.
When New York City was invaded by intelligent zombies called the Respawned, Doctor Strange hid in a safe area with several heroes and villains. Then Spider-Man arrived with Franklin and Valeria Richards. Spider-Man asked for help in helping Franklin after being bitten by his zombified mother. When Doctor Strange told Spider-Man that Franklin couldn't be helped, Warlock offered to help the grieving Spider-Man with Strange's help. Warlock created a new techno-organic body for Franklin. Then Strange transferred Franklin's consciousness into the new body. Franklin wouldn't learn about this for years.[1] What became of Doctor Strange afterward is unrevealed.