Cursed Spell: Crimson Bolt

A crackling lance of black energy lashes out towards a creature, linking you together with a cursed beam of energy. Make a ranged spell attack against a creature you can see within range. On a hit, the target takes 1d12 necrotic damage and must make a Constitution saving throw against your spell save DC, losing a number of hit points equal to half of the damage dealt on a failed save. On each of your following turns for the duration, you can choose to use your action to deal 1d12 necrotic damage to the target automatically. The spell ends automatically if the target ever exits the range of the spell or has total cover from you.

At Higher Levels. For each additional Hit Dice you use to cast this spell, the initial damage increases by 1d12.