True Shield

A sphere of energy erupts from you, encasing and protecting you. Until the end of your next turn, the shield can absorb up to 50 damage that you would have taken before shattering, including the triggering attack, spell, or effect, leaving you unharmed. Line effects and spells, such as lightning bolt and some dragon's breaths, stop completely at the sphere if its damage is entirely absorbed.

This shield reflects a magic missile spell back at the caster, using its spellcasting ability, instead of absorbing the damage.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the amount of damage this shield absorbs increases by 10 for each slot level above 5th.