Bloody Smite

The next time during the spell’s duration that you hit
a creature with a melee weapon attack, your weapon
pulses with a dull red light, and the attack deals an extra
1d6 necrotic damage to the target. Until the spell ends,
the target must make a Constitution saving throw at the
start of each of its turns. On a failed save, it takes 1d6
necrotic damage, it bleeds profusely from the mouth, and
it can’t speak intelligibly or cast spells that have a verbal
component. On a successful save, the spell ends. If the
target or an ally within 5 feet of it uses an action to tend
the wound and makes a successful Wisdom (Medicine)
check against your spell save DC, or if the target receives
magical healing, the spell ends.