Grievous slaughters Zannah with ease and then GODSTOMPS Bane worse than the mercenaries did
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
Shes a mediocre duelist who has beaten no one notable, and is significantly physically inferior to Grievous as a duelist. He is also significantly faster than Zannah and would just overwhelm her. She probably couldnt even take Darth Bandon in a saber duel
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
Due to the RoT, the Sith were in hiding. Zannah only fought two notable duelists, Bane and Sarro. This is through no fault of her own though or demonstrates a lack of ability, simply a lack of opportunity to demonstrate it. Which is why your backwards way of judging skill is idiotic.
She got overwhelmed by Bane and wouldve died to Sarro had she not had the PIS that was Johun Othone helping her out. But thank you for making a special pleading regarding her lack of showings, and then assertig she'd win when all she has beaten was a featless half trained Jedi. Her lack of exposition isnt exactly something you can use to make the claim she'd win, but ok whatever works dor you. You have nothing to suggest she'd beat him in sabers
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
__________________ "Vader's pulse and breathing were machine-regulated, so they could not quicken; but something in his chest became more electric around his meetings with the Emperor; he could not say how. A feeling of fullness, of power, of dark and demon mastery -- of secret lusts, unrestrained passion, wild submission -- all these things were in Vader's heart as he neared his Emperor. These things and more."