She's a nightmare to face with Regulus 1v1. When your mines become your best skill to use, something is wrong.
I managed to pull it out, but that was solely because I focused on citadel upgrades, movement upgrades, and stacking mana/armor.
I literally wasn't an archer for the last part of the fight, but Mr. Minelayer with a xbow relying on his creeps to pull the fight my way.
She dominated the early game, constantly putting pressure on my citadel. Definitely a rush demigod.
Pretty sure the other player thought they had dominated the match until angels started swooping down from my side while he just had gotten catapultasaurs.
It was still a toss up until I had controlled and locked one of his portals. Right when I got giants. He still ended up with the better kill/death ratio though.
If Sedna isn't rushing, I'd imagine she'd play great zone defense.