Creatures who stare deeply at this starknife find their minds plagued with thoughts of their cosmic insignificance—the unsettling awareness that they’re nothing more than irrelevant specks of dust compared to the vastness of the multiverse, and that their actions and choices are meaningless and ultimately inconsequential. Luckily, slicing your foes in half with a mini-galaxy is a phenomenal way to vent those feelings.
The starknife has 3 charges and regains 1d3 expended charges daily at dawn.
Galactic Disc Throw. As an action while holding the starknife, you can expend 1 charge to channel the cosmic energy in the weapon and throw it in a 15-foot-long line. When you do, the starknife spins rapidly and takes the shape of a disc galaxy as it travels. Make a ranged weapon attack with the starknife against each creature in the line. After it reaches the end of the line, the starknife stops and spins in place until the end of the turn, at which point it returns to you in a straight line. When it does, make another ranged weapon attack with the starknife against each creature in that line. Attacks made with this property deal slashing damage instead of piercing damage. If the spinning starknife hits a Medium or larger object at any point, it stops spinning and flies back to your hand.
Proficiency with a dagger allows you to add your proficiency bonus to the attack roll for any attack you make with it.