Hela (MCU)

"It's come to my attention that you don't know who I am. I am Hela. Odin's firstborn. Commander of the legions of Asgard. The rightful heir to the throne and the Goddess of Death. My father is dead. As are the princes. You're welcome. We were once the seat of absolute power in the cosmos. Our supremacy was unchallenged. Yet Odin stopped at nine realms. Our destiny is to rule over all others. And I am here to restore that power. Kneel before me and rise into the ranks of my great conquest."

- Hela Hela is the primary antagonist of the movie, Thor: Ragnarok. Like her comics counterpart, she is the firstborn child of Odin, sister to Thor, and goddess of death. During the events of the movie, it is explained how when she was active, she and Odin were warmongers, conquering the other realms and slaughtering their inhabitants. After this, however, Odin would eventually take a more peaceful stance. When Hela objected, Odin imprisoned her with a spell that would only wear off after he had died.

After Odin had his memories wiped and was sent to Midgard by Loki he began to near the end of his lifespan. When he was located by Thor and subsequently passed away, Hela appeared out of a portal, before engaging the thunder god. She easily defeated him, shattering his hammer and sending him spiraling out of the bifrost, teleported to an alien planet. She would proceed to singehandedly lay siege to and defeat the armies of Asgard.

However, after Thor would "awaken" his inner powers and return to Asgard to combat Hela alongside Valkyrie, Hulk, and a reformed Loki. While even the group together could hardly touch her due to her growing strength from Asgard, they eventually realised the only way to defeat her: to unleash Ragnarok. Reviving Sutur with the first flame, Asgard was utterly obliterated, along with Hela, as the remaining Asgardians escaped on a ship.

Battle vs. Baldur (God of War) (by Monkey Doctor 33)
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