Blood Smite

The next time you hit a creature with a weapon attack before this spell ends, the weapon gets covered with blood. The attack deals an extra 2d6 damage of that type to the target, which becomes marked by blood giving you advantage on your next attack against the creature. You take 2d4 Necrotic Damage.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the extra damage increases by 1d6 for each slot level above 2nd.