MAHA YOGI
(another great bio is here) updated info courtesy of John McDonagh!

First Appearance:  Journey Into Mystery #96
Origin Issue:  Incredible Hulk #210

Real Name:  Unrevealed
Aliases:  Merlin, the Warlock, Chandu, Le Sabre

Height:  6' 2"
Weight:  245lbs
Eyes:  Blue
Hair:  Black
Distinguishing Features:  none

Occupation:  Would-be conqueror, (former) professional criminal, mentalist, chairman of the board of Merlin Industries
Citizenship:  unknown
Place of Creation/Birth:  An unrevealed location in central Europe of 10,000 years ago

Known Relatives:  none
Known Allies:  Mongu, (former) the Caretakers of Arcturus
Known Enemies:  The Caretakers of Arcturus, Merlin, Sersi, Thor, the original X-Men, the Hulk, Dr Druid

Intelligence:  Above normal
Strength:  Normal
Speed:  Normal
Flight Speed: Normal
Stamina:  Normal
Durability:  Normal
Agility:  Normal
Reflexes:  Normal
Fighting Skills:  Minimal combat skills
Special Skills/Abilities:  none known
Superhuman physical powers:  Aside from the above listed attributes, Maha Yogi is virtually immortal, and has a physically malleable body
Superhuman Mental Powers:  Ability to cast illusions, control other's minds, project psionic force-bolts, create force fields, levitate, and teleportation
Special Limitations:  The Maha Yogi's psionic powers have a limited range
Source of Superhuman Powers:  (psionic powers) Mutation induced by the Caretakers of Arcturus, (immortality) possession of a fragment of the Bloodstone
Personal Weaponry:  none

Significant Issues: 

• Incredible Hulk #210:  acquired Bloodstone fragment granting him immortality, impersonated Merlin at Camelot, placed in suspended animation
• Strange Tales I#134) - Kang the Conqueror traveled back in time to Camelot, where he overpowered the false Merlin by turning his energies back on him, and imprisoned him in a special cell. Uatu the Watcher, however, recruited the Human Torch and the Thing from the modern era to travel back to Camelot to prevent Kang from altering the course of time. While the Thing fought Kang's forces, the Human Torch freed "Merlin," who then located Kang's ship and destroyed his power energizer, greatly weakening him. "Merlin" then rallied the forces of Camelot to turn against Kang, forcing him to flee.
• (Marvel Chillers I#1 - BTS/Dr. Strange III#11/2 (fb)) - Seeking an aid against the plots of Morgan le Fay, "Merlin" summoned Modred (NOT Mordred), the apprentice to the sorcerer Gervasse, to Camelot to serve as apprentice. Modred had no interest in serving under "that dry and aging charlatan, who is so senile that he cannot tell a wand from a poker." Gervasse echoed his sentiment, commenting, "Merlin has grown strange of late, and there art whispered tales of dealings he has made with dark forces! His students are sworn to silence by him, and none may leave on pain of death" Rather then go to train under "Merlin" in Camelot, and thus leave his beloved Janice, he instead sought power from the Darkhold, and was overcome by its power.  In an effort to prevent the power of Chthon from running rampant, "Merlin" sought aid from the Catholic Church, who sent one of their strongest mystic knights, Brendan--later Saint Brendan--to do battle with the forces unleashed by the Book of Sins. On that day, at least, his power and faith proved equal to the task. Brendan the scattered the pieces of the dreaded tome so that it could never gain plague mankind (it was, of course, regathered later).
• Journey Into Mystery #96:  revived in modern times, as Merlin, battled and defeated by Thor
• Uncanny X-Men #30:  as Warlock, organized a band of armored mercenaries, abducted Marvel Girl, battled the original X-Men, rendered comatose by Professor X
• Uncanny X-Men #47:  as Maha Yogi, attempted to create army of mind-slaves, defeated by the Beast and Iceman
• Incredible Hulk #210-211:  with Mongu, plotted world conquest, defeated by the Hulk and Dr Druid; with destruction of the Bloodstone aged rapidly into physical helplessness
• Doctor Strange (3) #27:  revealed to have been created by the Caretakers of Arcturus and to have turned against them
  

Appearances:

Avengers Annual 1993
Captain Marvel (5) #9, 11, 13, 16, 20-21
Doctor Strange (3) #27
Incredible Hulk #210-211
Journey Into Mystery #96
Uncanny X-Men #30, 47