Silver Tongue
Weapon (shortsword), very rare (requires attunement)
Blessed with moon-silver and imbued with celestial radiance, this blade is a bane to unnatural creatures and tricksters alike.
You gain a +1 bonus to attack and damage rolls made with this weapon. Silver Tongue is moon-silvered, allowing it to bypass resistances against monstrosities, undead, fey, and elementals.
When dealing damage with this weapon, you can choose to have it deal radiant damage instead of its normal damage type.
The sword glows when any of these creatures are within 60 feet of it, its silver surface radiating a pale luminescence. While the sword glows, you cannot be surprised by these creatures, and you gain a +5 bonus to initiative when entering combat against them.
Additionally, you can cast Detect Magic once per short rest.