Mace of Marrow

Damage: 1d6 — Damage Type: Bludgeoning
Modifiers: Spell Attacks +1
Once per short or long rest, you may draw upon
the power of this Magical Weapon to extract your
own life essence and empower your melee or
spell attack. Roll 1d4 then 1d8 and subtract the
first number rolled from your own health and
add the second number rolled as necrotic damage
to your damage roll.
Requires Attunement by Spellcaster - Artifact