Heaven's Edge
This ornate dagger is made of multiple pieces that magically hover together, but move as if they were solidly connected. You gain a +2 bonus to attack and damage rolls made with this magic weapon, which deals an extra 2d4 radiant damage to any creature it hits. This extra damage increases to 4d4 radiant damage if the creature is a fiend or undead.
When you roll a 20 on an attack roll made with this weapon against a fiend, the target must make a DC 15 Charisma saving throw. On a failed save, the creature is banished, as if by the banishment spell. This version of the spell doesn't require concentration but ends early if you become incapacitated or die within the next minute. On a successful save, the creature is blinded until the start of your next turn and isn't banished.
The rogue grinned, twirling the handle of a dagger in her hands: its blade and guard floating separately, but uniformly along with it. "All I'm saying is you need the right tools for the job, something to get through that thick skin of theirs." "And if that doesn't work?" the druid asked, wrinkling their nose at the hallowed burnt corpse. The rogue chuckled, her eyes glowing softly with a new divine power. "You either put the fear of the goddess back into them, or send them back to hell."