It is my understanding that the Ebony Blade only benefits from One Handed perks not Two Handed. It has a Two handed mesh, but a One handed format which is the reason behind its speed and incorrect audio files. The Ebony Blade may be a Two handed weapon but it only benefits from One Handed skill and perks.
Here is the link to the wiki if you read closer to the bottom, below the exploits area you will find a weapon classification section all the info is there.
It is my understanding that the Ebony Blade only benefits from One Handed perks not Two Handed. It has a Two handed mesh, but a One handed format which is the reason behind its speed and incorrect audio files. The Ebony Blade may be a Two handed weapon but it only benefits from One Handed skill and perks.
Here is the link to the wiki if you read closer to the bottom, below the exploits area you will find a weapon classification section all the info is there.