Hellcat Gauntlets

The fingers of these gray and scarlet gauntlets end in sharp talons, and a faint odor of brimstone rises from them.

When you activate hellcat gauntlets, the next spell you cast during your turn that targets a single creature also deals 1d6 points of slashing damage per level of the spell, unless the spell has no effect on the target (due to spell resistance or a save negating the spell, for example), in which case the extra damage is negated.

This ability functions three times per day, but it can’t be activated in consecutive rounds.

Prerequisites: Craft Wondrous Item, spectral hand, keen edge.

Cost to Create: 1,600 gp, 128 XP, 4 days.

Source: Magic Item Compendium, page 111.