Who would win: Cul Borson (the Serpent) or Hela Odinsdottir?

Who would win, Cul Borson (the Serpent), the norse god of fear, Bor's firstborn, Odin's older brother, Thor's uncle, and the original Allfather, or Hela Odinsdottir, norse goddess of death, Odin's firstborn, the heir to asgard's throne, and the older sibling of Thor and Loki?

Vs.

Powers and Abilities

Cul Borson:

• Culforce
• Ability to transform into a massive serpent (at full power)
• Ability to absorb fear to empower himself
• Ability to transform other heroes and villains to become his Worthy
• Ability to reverse age himself (by absorbing fear)

Hela Odinsdottir:

• Ability to conjure and fire (infinite?) amounts of weapons of all shapes and sizes from her body
• Ability to absorb energy from Asgard
• Ability to resurrect the dead (using the eternal flame)
• Ability to regenerate from injuries
• Skilled at combat and is very agile

Feats

Cul Borson

• Summoned nine magical hammers that transformed nine villains and heroes into his Worthy

Deflected Mjolnir (possibly erasing its enchantments) and sent it the opposite direction using a blast of the Culforce

• Plunged all of Midgard into terror
• Killed Thor (who was armored and wielding the Odinsword) during the final battle of Fear Itself
• Left Midgard in ruins

Hela Odinsdottir

Destroyed Mjolnir moments after escaping Hel

Caught Loki's dagger and threw both him and Thor out of the Bifrost

Wiped out Asgard's entire army, only suffering minor injuries that healed instantly

Resurrected Asgard's former army and Fenrir using the Eternal flame

Healed from an impalement from Gungnir and beat Thor in hand to hand combat

Survived a stab from Valkyrie's sword and a lightning bolt from fully empowered Thor

Created a mountain and launched multiple giant spears at a fully empowered Surtur

Who would win? Questions and Comments below!