Eldritch Touch

You summon the spirit of an eldritch being in the space of a creature within range. Make a ranged spell attack against the creature to grip them with the terror of the unknown. On a hit, the target takes 1d8 necrotic damage, and it can't regain hit points until the start of your next turn. Until then, the target is covered in ghostly tentacles. 

If you hit a fae or sylvan target, it also has disadvantage on attack rolls against you until the end of your next turn.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).