Marvel
Released August 1977
Uncanny X-Men #106
Published
August 1977
Pages
32
DARK SHROUD OF THE PAST! The X-Men are working out in the Danger Room when the evil aspect of Xavier's mind attacks them with versions of the old X-Men.
Key Facts
- 1st appearance of the Entity, the dark side of Professor X
- There are similarities between the Entity and Onslaught although the Entity is Xavier's dark side while Onslaught is the manifestation of Xavier and Magento's dark sides
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