Lightslicer

"The diamond-edged saw teeth of this dagger slice up living flesh as easily as a housewife slices a loaf of bread. Holy water used in its forging imbues the blade - it hits demons and devils with extra force, and totally overwhelms any of the Undead unfortunate enough to face its bearer. An enchantment on the pommel enables the wielder to critically hit opponents; another incorporated into the diamond edge adds severe burn damage. As well, this dagger enables its wearer to cast a powerful lightning bolt at enemies."