Jason Wyngarde (Earth-7045)

Jason Wyngarde a.k.a. Mastermind is a mutant with the psionic ability to generate complex telepathic illusions at will that cause his victims to see whatever he wishes them to see. He was a founding member of the Brotherhood of Mutants and later a member of the Hellfire Club's Inner Circle.

History
to be added

Powers

 * Illusion Casting: Mastermind is a mutant with the power of illusion casting. He can psionically cause other people to see, hear, touch, smell, and/or taste things which to not actually exist. For example, he can seem to make a solid wall appear in an empty space. He can also cause people to see, hear, touch, smell, and/or taste real things in ways that they would not do naturally. For example, he can make himself look and sound like a different person, or look and feel like a wall, or even seem invisible. Since his power only affects the mind, his illusions cannot be recorded on film or tape or by other means. However, his power works so strongly on the mind that even if his victim or victims know they are being subjected to an illusion, they will still react to the illusion as if it were reality unless they can rid themselves of all suspicions that it is indeed reality. Hence, if Mastermind creates the illusion of a wall, most people, even if they know it is an illusion, will still be unable to walk through it. Invariably Mastermind's illusions are so realistic that most people are unable to help having the feeling, at least subconsciously, that they are not illusions but reality.
 * Special Limitations: Everyone within the range of his power, which can extend over an entire city, will see his illusions.

Weaknesses
Without artificial aids, Mastermind cannot cause only one person among many who are present to see his illusions.

Equipment
Mind-tap mechanism created by the White Queen, which boosted his illusion powers through simulated telepathy.