As the ruler of an entire dimension, Dormammu's power is self-evident. Doctor Strange was smart enough to recognize that he could not kill the Dark Dimension's avaricious ruler
The sheer scale of Alioth's power is demonstrated by the fact that he killed multiple variants of the Multiverse Saga's arch-villain, Kang the Conqueror
Despite growing lazy and complacent in Omnipotence City, it's safe to assume that the King of the Gods is on a par with Odin in terms of power, if he tried
While Blackagar Boltagon was a part of the ill-fated Inhumans series, its canonicity remains distinctly unconfirmed as Marvel seems keen to sweep its existence under the rug
The hulking stature of Nidavellir's last remaining Dwarf is intimidating enough, but Eitri's true power rests in his smithing abilities
Frigga's role in the MCU was largely non-combative, but Frigga would have cut Thor: The Dark World short were it not for Kurse's intervention
Kurse was a highlight of an otherwise disappointing movie, particularly for his terrifying character design
Although Wong is largely a font of comic relief, his ascension to the role of Sorcerer Supreme in Doctor Strange's absence speaks volumes
The King of the Frost Giants may have been bested by the Asgardians on more than one occasion, but the fact that Laufey could stand up to them at all is a testament to his power
As an Asgardian god, Heimdall is already on a par with Thor; but as the Asgardian in control of the Bifrost, Heimdall's power is hugely augmented