Love’s Pain

3rd level Corrupt evocation spell.
Casting time 1 action.
120 ft. range.
Components V, S.
Duration Instantaneous.
Book of Vile Darkness

The caster blasts a lance-like projectile of greenish-black energy from their hand and makes a ranged spell attack against a creature. This energy does not harm the subject, but instead the subject’s closest friend or dearest loved one is wracked with pain and takes 5d10 force damage. The main subject is aware of the loved one’s pain and has disadvantage on attack rolls for for 1 minute. If the loved one is within an antimagic field, the spell has no effect. It may take DMs and players a moment to determine who the subject’s dearest loved one is. The DM determines this for non-player characters (NPCs). It is rare (but possible) that no individual qualifies. In that case, the subject takes the damage. When this spell is cast with a spell slot 4th or higher, the damage increases by 1d10 for each spell slot level above 3rd.

Corruption Cost: 1d6 INT damage

Any spellcaster that prepares spells can learn these spells. Each spell list has an alignment attached to it. If a creature of a different alignment casts one of these powerful spells, their alignment shifts towards the alignment of the spell by one step. Each spell has a corruption cost that is paid when the duration of the spell ends or according to the spell’s description. If the cost is ability damage, it is restored when the caster finishes a long rest. If the cost is ability drain, it does not recover until the creature receives attention from a Greater Restoration spell.