Vampiric Blade

You choose a weapon you can see within range and cloak that weapon in necrotic energy that draws life force into it's wielder. Add 1d6 necrotic damage to the weapon's attack, healing the wielder half of the necrotic and weapon damage the wielder deals on a successful attack. This effect lasts 1 minute or until you end the effect with a Bonus Action.

At Higher Levels. When you cast this spell using a spell slot above 1st level, you gain 1d6 necrotic damage per slot above 1st level.