Death Lance

You gain a +2 bonus to attack and damage rolls
made with this weapon
When you hit a creature with this weapon the
target takes an additional 4d8 Necrotic damage.
The target's hit point maximum is reduced by the necrotic damage it takes.
In addition, 3/day you can cast Inflict Wounds as
a 1st level spell. When Inflict Wounds is cast with
this weapon you regain an amount of HP equal to
half of the damage dealt (rounded up).