Magneto

Max Eisenhardt, also known as Magneto, is one of the major characters from the Marvel comics.

Among the most powerful, recognizable, and infamous mutants to inhabit the planet Earth, Magneto was the X-Men's first major nemesis. Now known as a revolutionist and terrorist, Magneto has fought for the X-Men as many times as he’s been against them.

Personality
In his initial appearances, Magneto was portrayed as a would-be tyrant, who had a desire to punish all human and would often abuse his subjects (he physically abused Toad, one of the members of the Brotherhood of Evil Mutants, while Scarlet Witch was psychologically tormented into obedience, as Magneto saved her life in the past). Eventually, (as Marvel did with many of their long-lasting villains over the years) Magneto was given a more humanized portrayal as a Holocaust survivor who wanted to ensure that mutants would not suffer the same fate his family did for being born different.

Magneto has long been the face of mutant separatism, in opposition to Charles Xavier's ideal of coexistence with humanity. Believing that mutants are the next stage in human evolution, he sought to assert their dominance over the planet and its inhabitants. This was Magneto's means of assuring the survival of his people in a world that hates and fears them for there very existence. Though not a hero, Magneto is charismatic, noble, and wise. His long and turbulent friendship with Charles Xavier has been a cornerstone for both men's lives, as a rivalry that has lasted decades.

Magnetic Field Manipulation
Magneto's mutant power gives him mastery over all forms of magnetism. He can perceive the magnetic forces of the Earth as well as the bio-electrical patterns of all living beings. He can draw on and use the magnetosphere of the planet, which extends far into space. Magneto can use his vast power to reshape even the most indestructible metals, including the adamantium in Wolverine's skeleton. He's been shown controlling the most insignificant magnetic particles in both the atmosphere and in living beings, reversing their blood flow or ripping out any ferrous elements through their tissues.

Magneto can create electromagnetic fields strong enough to manipulate non-ferrous items, though he may be using anti-gravity fields to do this. He has demonstrated the ability to lift thousands of tons with his magnetic powers, although the greater he exerts himself the greater the physical and mental stress he undergoes. Magneto has the ability to increase his physical attributes by directing his magnetic powers inward. He has been seeing increasing his physical strength and durability, as well as his speed and reaction time.

Magneto can create powerful magnetic force fields for personal protection, project blasts of electricity or magnetic energy, and generate powerful electromagnetic pulses. He can also assemble complicated machines within seconds through the use of his powers. Although Magneto's primary power is the control over magnetism, he can also manipulate any form of energy from the electromagnetic spectrum. This includes visible light, radio waves, ultraviolet light, gamma rays, and x-rays. It is more difficult for Magneto to manipulate other forms of energy, so he predominately only uses magnetism.

After his exposure to an attack from the Phoenix Force, Magneto's powers have been greatly reduced. He has shown limits in only being able to dismantle a few sentinels at a time, and has been forced to become more precise in his attacks, resulting in him using metallic objects as projectiles more frequently. Magneto has also shown he can overexert himself rather quickly, resulting in physical harm. Despite these limits, Magneto has still shown the ability to fly and use his powers in a precise and accurate manner. Recently, in a fit of rage, he made a skyscraper collapse. Perhaps this shows his powers are returning to their once former glory or that in cases of extreme emotion, his powers get stronger than their current state.

Mental Resistance
Magneto has trained himself to defend his mind against even the strongest telepathic attacks. Due in part to his long history with Charles Xavier, he possesses a great deal of knowledge in devising technology to block psychic assaults. Magneto's helmet greatly augments his already immense mental fortitude, and even without it he has been shown resisting the intrusion of immensely powerful psychics such as Xavier and Emma Frost (whose telepathy Magneto resisted even when she possessed the Phoenix Force, though with great effort).

Genius-level Intellect
Magneto is a genius with competence in various fields of advanced science, especially genetic mutation, particle physics, engineering, and robotics. His intellect has allowed him to create many advanced and complex machines, most of which are well beyond the scope contemporary science. He has engineered advanced robots, space stations, devices capable of nullifying mutant powers except for his own, devices that generate volcanoes and earthquakes, and devices that block telepathy. He can create artificial living beings (such as Alpha the Ultimate Mutant) and fully-grown adult clones, as well as mutate humans in order to give them superhuman powers.

Master Combatant
Magneto has some military training in hand-to-combat and is capable of holding his own in a fight, though he prefers the use of his mutant powers in most combat situations. He is an able athlete despite his age, and keeps himself in excellent physical condition.

Master Tactician and Strategist
Magneto is an excellent strategist, both in actual battles and games of chess, and has extensive combat experience. He has successfully held his own in combat against entire groups of superhuman adversaries, such as the X-Men and the Avengers.

Multilingual
Magneto is a polyglot, fluent in English, German, Polish, Yiddish, French, Russian, Ukrainian, Hebrew, and Arabic. He has even managed to decipher the ancient language of a lost civilization.

Magneto's Armor
Magneto's helmet is designed to prevent telepathic intrusion or psionic attacks. This is accomplished via technology of Magneto's own design wired into the helmet itself. The helmet has become something of a symbol, an integral part of Magneto's persona. When Magneto was thought dead after the sentinel attack on Genosha, t-shirts adorned with the image of him wearing his helmet and featuring the slogan "Magneto Was Right" started being worn by disenfranchised mutant youth as a symbol of rebellion.

The costume that Magneto wears is actually a type of armor that he has created through the use of his magnetic powers. The costume is an amalgam of various lightweight, but highly durable, metallic alloys that further protects him from many forms of physical injury.

Utility Belt
After losing most of his power due to exposure to the Phoenix Force, Magneto has resorted to donning a new outfit, including a utility belt. He has shown to keep small, metallic objects, such as nails, in his pouches to use as weapons. In times of being out of his suit, Magneto carries knives and bullets on his person.

Trivia

 * Magneto is Jewish by birth, but this aspect of his character is not always openly stated. In addition to more specific examples, on a few occasions he is shown to still believe in God, but it's never made clear if he is a practicing Jew. Whenever he references scripture, it is usually the gospels - though that could just be a case of his being widely read and using more familiar (and to his mind, ironic) quotations. He shaves, though no one knows how. And in X-men (2019), he eats steak and bacon.
 * In older works: is he an anti-villain with sympathetic aims, a leader with extreme methods toward a golden age for mutants, or a completely psychotic madman who will strike down ANYONE who gets in his way? It depends on what interpretation there is one thinks holds the most water, though these days, it's generally the former, with Magneto see-sawing between anti-hero and anti-villain.
 * Depending on the Writer (usually Chris Claremont takes this view), there will be many times in which he heavily regrets the seemingly never-ending conflicts he has with Charles and his X-Men, even if he thinks that he does what is right by his people.