It whips out misty and deadly tendrils toward any sources of light and cuts through anyone who gets in the way. Samuel Peabody laced it with Mordite which made it particulary deadly on contact. The first wizard it killed it cut completely in half in one swift stroke of a smoky tendril.
It was infused with mordite
In the seriesEdit
In Turn Coat, at Donald Morgan's trial, Harry Dresden accuses Samuel Peabody of being the real murderer of Aleron LaFortier and of framing Morgan. In order to escape, Peabody broke an ink bottle that freed a Mistfiend laced in mordite killing and wounding many of those attending Morgan's trial.
It took all of the Senior Council to contain it. Since most of the wizards present at Morgan's trial were LaFortier's supporters, they ended up being most of the wounded and killed by the Mistfiend. It caused an outcry of suspicion by LaFortier's supporters.