Leah Odinsdottir (Earth-8311)

Powers & Abilities
Super Strength: Hela not only possesses the natural strength of an Asgardian, but due to her increased power as Queen of Hel has become even stronger.

Super Speed: The power she gained when taking the throne of Hel made her much faster than she previously was.

Healing Factor: Hela is able to heal at incredible speed, with injuries such as broken bones taking only a few hours to heal.

Sorcery: Originally taught by her mother, Freyja, Hela honed her magical abilities after her banishment to Niflheim.

Weapons Expert: She has about 9000 years of experience in handling weapons, and few can compare to her. She prefers to use sorcery because it's "more fun", but sometimes picks up her sword for combat.

Expert Combatant: She is also able to hold up her own in a weapon-less physical fight, but just like with weapons prefers to use her magic.

Astral Projection: While banished to Niflheim and unable to leave, Hela learned how to travel in an astral form, allowing her to explore the cosmos beyond her realm, except for Asgard, which is protected by the Odinforce, and blocks any astral projections from outside the realm.

Paraphernalia
All-Black the Necrosword: A mysterious weapon that Hela discovered in the darkest depths of Hel. It allows her to 'cut through souls', but only if they've left their physical body. She uses it to torture souls in Hel, and because it is indestructible, she uses it in regular battle like she would any other sword.

Trivia

 * Although her birth name is Leah, she chose the name 'Hela' when she came to rule Hel, as it was both an anagram of her birth name and included the name 'Hel'.