"He is the Cosmic Conqueror, the Destroyer of Worlds. A being of infinite power and endless hunger, on a quest to invade every universe and bring all worlds into his Dark Dimension. And he hungers for Earth most of all."
Dormammu is a primordial, inter-dimensional entity who wields apocalyptic levels of supernatural power and is the ruler of the Dark Dimension. Dormammu convinced Kaecilius to use his power to destroy the Masters of the Mystic Arts and bring the Dark Dimension to Earth. Before Dormammu could complete his plans, he was confronted by Doctor Strange, who used the Eye of Agamotto to trap Dormammu in an endless time loop until he agreed to leave Earth and take Kaecilius with him.
"Also known as the destroyer of worlds, the malevolent Dormammu is constantly plotting to conquer all of the infinite realities and dimensions within the multiverse and absorb them into his home domain."
Dormammu has absorbed countless dimensions and realities within the infinite multiverse which makes him a universal by far the most powerful in the MCU
"Dormammu appears as a massive floating head composed of space-time with eyes centered within vertical stripes of crackling rippling energy."
Dormammu can also manifest a body at will and warp reality around him while moving it
"Existing outside of time the Dark Dimension serves as a home for the dreaded Dormammu the dominion transcends humanity's understanding of physics and humans perceive it only in abstract phallic concepts free-floating shapes interacting with inexplicable planetoids colors energies from across all identified and likely even unidentified spectrums the realm itself is devoid of light all illumination within it is apparently from other dimensions that Dormammu has absorbed into it."
"Dormammu completed the corruption of Kaecilius and the Zealots' bodies, transforming them into bestial mindless ones and pulling them into the dark dimension,"
Dormammu has the capability of transmuting living beings and turning them into mindless ones
Shoots lasers can conjure spikes and tentacles and throw planetoids
- Dormammu is a powerful extradimensional being older than time itself
- Dormammu is unable to defend himself against time a concept that was foreign to him