i don't know who sinister is
Mr. Sinister is my all time favorite X-character i really think he is potentially the most dangerous X-men character that really doesn't have to lay a finger on you or be present for that matter he is so behind the scenes and such a enigma most of the character is shouldered in mystery for intense no one on here can really honestly tell you what the hell his powers are
What issues are these images from?
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