When you hit a creature that is not undead or a construct with this magic weapon, the target must save versus Constitution DC17. On a failed save the target takes an extra 2d8 necrotic damage. You also gain 3d4 temporary hit points. On a successful Constitution save, the target takes only half damage and you gain 1d8 temporary hit points.

When you critically hit a creature with an attack roll that is not undead or a construct with this magic weapon, the target must additionally make a separate Constitution DC17 save or suffer one level of exhaustion. If that additional save is missed, you also remove one level of exhaustion if applicable. Exhaustion levels applied by this magic weapon last 24 hours from the time they are applied and are entirely removed by a long rest or a Lesser Restoration or Greater Restoration spell.

Note: If the dagger is thrown or otherwise not in physical contact with its attuned attacker then only the damage and potential exhaustion levels are imposed on the target and no benefits are transferred to the attacker.

The steel dagger is 17 inches long of small width and a small bronze handguard. The blade appears to be oiled with a shifting to shades of green and purple but is dry and cold.

Proficiency with a Dagger 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, Exhaustion, humanoid and does not require proficiency. Constructs and undead may not attune. A full hour attunement will add one level of exhaustion. Attunement may be stopped prior to the hour and no exhaustion will be imposed., Healing, Damage, Buff, Debuff, Combat, Finesse, Light, Thrown, Nick