Item: Flaming Flense

Multiple inspirations for this one. I was really into the idea of the battle master's Sweeping Attack, and thought that it could relate to the Crusader's sweeping flail attacks from Diablo 3. Then I thought about Diablo 3's Butcher and his dragging attack, so decided that a whip would serve the theme more than a flail. Finally, I figured that a magic weapon needed to have more oomph than a regular weapon, hence fire damage. A whip that deals fire damage, sounds familiar...

Yup, the Balrog's whip.