I made this mod purpose to me, reason for testing new kill moves from other modders. This is not a hard mod to make, but might as well post it on nexus. Cause why not.

You can find it in the Dragonreach fireplace in front of Jarl Balgruuf in whiterun. 

DISCLAIMER: The weapon isn't called overpowered Daedric Sword or anything, during the time I name the sword Dark Souls cause I can't think of anything and was to lazy to change it. The file also call Dark SOuls. So don't bother the name that much. No, its not anything from the dark souls game.

INSTALLATION: This is really important: you need to download the file and place it in the Skyrim data folder