Cruel Word: Sever

You unleash a word steeped in disdain, attempting to unravel a creature's mystical connection to it source of power. Choose one creature within range that is capable of casting spells. The target must make a saving throw using it spellcasting ability modifier. On a successful save, the creature take 7d6 psychic damage. On a failed save, the creature is cut off from its power source and is unable to cast spells using a spell slot of 4th level or higher for the duration.

Whenever the creature attempts to cast a spell of 1st level or higher, it must make another saving throw using its spellcasting ability modifier. On failed save, the creature take 1d10 force damage per level of the spell attempted, and the spell fails. On a successful save, the spell cast as normal. If the creature succeeds on this saving throw three times, this spell ends for that creature.

If Cruel Word: Sever last for the full duration or if the creature fails three saving throws while attempting to cast spells during the duration, the effect becomes permanent until removed. This effect can only be dispelled by Remove Curse spell cast at a level equal to or higher than the original casting level Cruel Word: Sever. A Remove Curse cast at a lower level allows the creature to cast spells of that level and lower for number of hours equal the level of the spell slot used.

"Everything that made you special was just a whisper of power. And whispers can be silenced."