Ní Móralltacht.

Weapon On a natural 20 attack role, the victim takes an additional 3d6+5 damage form this magical weapon. Of all the damage dealt by this sword, oe tenth rounded down of the equivalent amount of hit-points is restored to the user. The sword is sentient and holds a mound of its own. A positive relationship with the weapon's personality is required to successfully use the blade. Those wielding the weapon without establishing this connection must roll all attacks with disadvantage. Very Rare (this item requires attunement)

A savage yet refined longsword with a wavy edge to the lower portion of one side of the blade and a gently tapering point and wide cross-guard. The personality of the blade is decidedly female and somewhat aggressive, made far more possessive and defensive by it's previous owner's untimely death. This cruel weapon tears into it's victims gleefully and saps their life, giving the vitality to the user.

Type	Damage	Damage	Range	Properties
Martial Melee	1d8 slashing +4 necrotic / 1d10+4	Slashing	5ft	On a natural 20 attack role, the victim takes an additional 3d6+5 damage form this magical weapon. Of all the damage dealt by this sword, oe tenth rounded down of the equivalent amount of hit-points is restored to the user. The sword is sentient and holds a mound of its own. A positive relationship with the weapon's personality is required to successfully use the blade. Those wielding the weapon without establishing this connection must roll all attacks with disadvantage.