Brian Michael Bendis' "Uncanny X-Men" is set to get swept up in Marvel's "Original Sin" event later this year, and in anticipation, Bendis has revealed the first look at the cover for "Uncanny X-Men" #23 by Chris Bachalo on his Tumblr, which teases "The Last Will and Testament of Charles Xavier."

"Not only is [it] our 'Original Sin' tie-in, but it is also probably the most incendiary X-Men story, maybe ever," Bendis said in the Tumblr post.

Check out the first look at the cover below.