Thought Barrier

You wrap yourself in a shell of psychic energy to protect you from incoming harm. The barrier has 4 hit points, and takes any incoming damage on your behalf as part of the reaction, even if it doesn't deal physical damage. If the barrier is reduced to 0 hit points it breaks, and each creature within 5 feet of you must make an intelligence saving throw. On a fail, a creature will take psychic damage equal to your spellcasting ability modifier as the barrier shatters in a wave of mental energy, and the spell ends. The spell will also end at the end of your next turn if it did not break.

After you use Thought Barrier, you can't cast it again for 10 minutes

At Higher Levels. The shell's hit point maximum increases by 4 and the break effect's damage increases by 1d4 at 5th level (8 hit points and 1d4 + spellcasting ability modifier), 11th level (12 hit points and 2d4 + spellcasting ability modifier), and 17th level (16 hit points and 3d4 + spellcasting ability modifier).