Sword of Mercy

Uncommon Longsword (Versatile)
Requires attunement

Damage. 1d8 (1d10) +1 Slashing
Might of Mercy. You gain a +1 bonus to attack rolls you make with this weapon.
Spare Them. When you reduce a creature to 0 hit points using this sword,and choose to knock them unconscious instead, you regain a number of hit points equal to half of the damage you dealt with that attack. Additionally, while attuned to this sword, you may cast the cantrip Spare the Dying at will.