Blood Curse

You touch a creature, and that creature must succeed on a Wisdom saving throw or become cursed for the duration of the spell. When you cast this spell, choose the nature of the curse from one of the following options:

• Choose one ability score. While cursed, the target has disadvantage on ability checks and saving throws made with that ability score. when it fails a saving throw with the chosen score by 5 or more, you may spend your reaction and lose 2d6 hit points to make the cursed target take 4d6 necrotic damage
• While cursed, the target has disadvantage on attack rolls against you. when it fails an attack roll against you by 5 or more, you may you may spend your reaction and lose 2d6 hit points to make the cursed target take 4d6 necrotic damage.
• While cursed, the target must make a Wisdom saving throw at the start of each of its turns. If it fails, it wastes its action that turn doing nothing. when it fails by 5 or more, you may you may spend your reaction and lose 2d6 hit points to make the cursed target take 4d6 necrotic damage.
• While the target is cursed, your attacks and spells deal an extra 1d8 necrotic damage to the target. when an attack against it succeeds by 5 or more, you may you may spend your reaction and lose 2d6 hit points to make the cursed target take 4d6 necrotic damage.

At Higher Levels. If you cast this spell using a spell slot of 4th level or higher, the duration is concentration, up to 10 minutes. If you use a spell slot of 5th level or higher, the duration is 8 hours. If you use a spell slot of 7th level or higher, the duration is 24 hours. If you use a 9th level spell slot, the spell lasts until it is dispelled. Using a spell slot of 5th level or higher grants a duration that doesn't require concentration.