You grant one creature that you can see within range a dark blessing. If the target is unwilling, it must succeed on a Charisma saving throw to avoid being affected. While blessed this way, the target has advantage on attack rolls, but each time it makes an attack roll, it takes 1d6 necrotic damage. The target doesn’t gain advantage on attack rolls against you.

Using a Higher-Level Spell Slot. You can target five additional creatures, if cast with a level 5+ spell slot.