Spell-Splitter

Dagger, Rare (Requires Attunement)

You gain a +1 bonus to attack and damage rolls with this magic weapon. Spell-Splitter has 3 charges. When you hit a target with an attack roll, you may expend a charge to cast dispel magic from Spell-Splitter at 3rd level, targeting the same target as the attack. If an ability check is required, Spell-Splitter’s bonus is +1. Spell-Splitter regains 1 charge daily at dawn.

Azrael's Guide to the Apocalypse, printed page 176.