Thought Erasure

You weave magical energies to pierce the mind of your foes to remove their ability to cast a spell. Choose a creature within range, it must succeed on a Saving Throw, determined by your Spellcasting modifier, or you may choose a spell of 3rd level or lower and that creature loses the ability to cast that spell until they finish a long rest. 

A target may only be under one effect of this spell by a single caster. If you cast this spell on a creature that is already under this effect, you may choose a new spell. If you do, the target regains the ability to cast the spell from the first effect.

Casting remove curse, greater restoration, or a similar spell on the target spell ends this effect. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the chosen spell may be at the same level or lower than the spell slot you used.