Blessed by the Moon

You enchant the Weapon you are currently wielding, if you lose grip of your weapon, or are disarmed, the spell effect ends. While active, the sword becomes a +1 weapon, and is considered magical for the purposes of overcoming resistances. Additionally, the blade you are holding is considered silver.

in addition, you are able to detect all Undead, Werewolf, Fiend, and Celestial within the range of 30ft, giving out a glowing aura. 

When this spell effect ends from anyway, you edit a glowing aura, and deal 10 radiant damage to up to creatures equal to your spell casting ability modifier, in a 20ft radius