Arcane Reflector

You protect yourself in a magical barrier of anti-magic energy. The barrier has 3 spell level charges. When subject to a spell that targets only you, if you have spell level charges equal to the level of the spell cast at you, the spell reflects back to the caster as if you had cast it. When a spell is reflected this way, subtract the spell levels of the cast spell from the remaining charges of the shield. When all charges are expended, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you gain 1 additional spell level charge per slot level above 5th.