When you attack a creature with this magic weapon and roll a 20 on the attack roll, that target takes an extra 10 necrotic damage if it isn't a construct or an undead. You also gain 10 temporary hit points.

Proficiency with a scimitar allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Damage: Necrotic, Bonus: Temporary Hit Points, Healing, Damage, Combat, Finesse, Light