List of Marvel Powers/I

* ***Ice Clone Generation:*** the ability to generate clones of oneself made of ice.
	+ ***Users:*** Iceman
* ***Illumination:*** the ability to light up an area.
	+ ***Users:*** Dazzler
* ***Illusion Casting:*** the ability to make others see and experience things that aren't actually happening.
	+ ***Users:*** Amanda Sefton
* ***Illusion Perception:*** the ability to see past illusions and disguises.
	+ ***Users:*** Eye-Boy
* ***Immortality:*** the ability to have an infinite lifespan.
	+ ***Users:*** Apocalypse, Azazel, Blackheart, Darwin, Deadpool, Juggernaut, Miss Sinister, Phoenix Force, Red Death, Selene, Thing, Triage
* ***Imperceptibility:*** the ability to be incapable of being perceived or remembered.
	+ ***Users:*** ForgetMeNot
* ***Inanimate Disintegration:*** the ability to cause inanimate objects to disintegrate.
	+ ***Users:*** Selene
* ***Inaudibility:*** the ability to render oneself completely silent.
	+ ***Users:*** Cipher
* ***Infrared Vision:*** the ability to see other beings by the heat signatures that they give off.
	+ ***Users:*** Samson, Toad
* ***Ink Generation:*** the ability to produce ink from one's body.
	+ ***Users:*** Marked Man
* ***Insect Control:*** the ability to communicate with and manipulate insects.
	+ ***Users:*** Ichisumi
* ***Insectoid Physiology:*** the ability to have the attributes and abilities of an insect.
	+ ***Users:*** Angel Salvadore
* ***Instantaneous Adaptation:*** the ability to adapt to any situation that one is placed in.
	+ ***Users:*** Darwin
* ***Insulated Weather Adaptation:*** the ability to be resistant to the effects of the weather.
	+ ***Users:*** Daken, Wolverine
* ***Intangibility:*** the ability to be able to pass through solid matter.
	+ ***Users:*** Cassandra Nova, Cipher, Feral, Omega White, Quicksilver, Scribe, Shadowcat, X-Man
* ***Inter-Dimensional Energy Conduit:*** the ability to be empowered through interdimensional energies.
	+ ***Users:*** Captain Britain
* ***Inter-Dimensional Teleportation:*** the ability to teleport to other planes of existence and dimensions.
	+ ***Users:*** Blackheart
* ***Interference:*** the ability to short out machinery or control them to some degree.
	+ ***Users:*** Phantazia
* ***Interphasing:*** the ability to scramble the molecules of whatever one touches.
	+ ***Users:*** Shinobi Shaw
* ***Intuitive Aptitude:*** the ability to disassemble complex devices explosively and, just as quickly, assemble complex devices.
	+ ***Users:*** Cable, Exodus, Rachel Grey
* ***Intuitive Genius:*** the ability to have an intuitive talent for inventing mechanical devices.
	+ ***Users:*** Box, Doctor Nemesis, Forge, Ziggy Karst
* ***Intuitive Multilingual:*** the ability to intuitively translate new languages.
	+ ***Users:*** Exodus, X-Man
* ***Intuitive Tactical Ability:*** the ability to immediately intuit the best way to engage in any tactical problem.
	+ ***Users:*** Callisto
* ***Invisibility:*** the ability to render oneself unseen to the naked eye.
	+ ***Users:*** Cipher, Invisibile Woman, Phantazia, X-Man
* ***Invisibility Field:*** the ability to project a field of invisibility around oneself.
	+ ***Users:*** Hector Rendoza
* ***Invisibility to Technological Detection:*** the ability to be unable to be detected or located by technology.
	+ ***Users:*** Aurora
* ***Invulnerability:*** the ability to be completely unaffected by physical attacks and injuries.
	+ ***Users:*** Apocalypse, Graymalkin, Hulk, Juggernaut, Kid Gladiator, Omerta, Sentry