The Contender: Hekate is revered in Wiccan circles as the Goddess of magic, ghosts, necromancy, and pretty much everything that goes bump in the night. As the witch of all witches, she would pose a supernatural challenge to Kratos, and perhaps award players with “Hekate's Crown”, allowing them to raise fallen enemies to do their bidding.
The Fight: A God of War game isn't complete without a trip through hades, and seeing as Hekate has a ton of underworld connections, it's about time she got her hands dirty. Hekate's fight would play out as something of a horde mode, pitting Kratos against waves of undead while Hekate controls the horde from the middle. As a twist, Hekate could remap Kratos controls, forcing players to wrestle with a possessed Spartan.
The Finisher: Ripping out Hekate's tongue to silence the witch for good, Kratos strings her up with the entrails of the undead and pulls her apart with one final tug.