Originally Posted by
Daedra
Marvel described selene’s powers in his official handbooks, no need for conjectures
Powers/Abilities: Selene is a mutant and a sorceress with a multitude of super human abilities, including extremely long life, which she can sustain by psionically draining the life force from other beings. When she drains the full life force from a person, the victim's body crumples in a heap of dust. Selene generally drains life through touch, but she can absorb the energies of those who die near her as well and can kill others from a distance as well. Selene can sense the energy released from the death of others. By only partially draining the life force of others, Selene can place them under her psionic control, or turn them into "energy vampires" like herself, also subject to her control. Upon touch, Selene can also release the hidden inhibitions of others, turning them into more savage or base versions of themselves. If Selene goes without new energy for too long or if she expends too much of her own energy, she quickly ages into an ancient wrinkled woman until she drains more energy.
Selene is highly resistant to injury. She can withstand being submerged in hot lava, bullet wounds, and knife wounds, claiming not to have a heart. She has enhanced strength, stamina, speed, and reaction time. Selene possesses telekinetic abilities that allow her complete control over inanimate objects and fire. She can reform inanimate objects into various shapes and animate them by projecting a portion of her life force into them. This control can by very precise, such as covering subjects in a layer of rock, or massive, such as the moving of a mountain. She can also disintegrate inanimate objects, but has no control over organic objects or beings and can not rearrange molecular matter.
Selene possesses telepathic abilities as well, able to read the thoughts of others (who don't have psychic defenses), sense others, and project her thoughts into the minds of others, even over vast distances. Selene can momentarily hypnotize others even while briefly increasing her speed, making those around her think she has disappeared. In addition, Selene's mind is resistant to telepathic attacks and magic spells meant to affect the memory.
Selene has been known to use magical spells to various effects. The effects include enhanced mystical knowledge, the summoning of demons and entities, manipulation of various artifacts (including mystic jewelry and runestaffs), teleportation across the world, fire energy blasts, disguise her appearance (as she has as Magma and as an old woman), disguise the appearance of others (as she made Magma look like her), and restrain others in mystic bands. Recently Selene developed the ability to meld with shadow. She can become intangible at will, manipulate and elongate in order to ensnare others, and meld herself in shadow.
Selene was once seemingly killed by having her energy dissipated but she was preserved by having her consciousness bonded to air molecules and contained in a sealed room; she was later restored to life by the Enchantress.