True Shield

A sphere of protective energy surrounds you, shielding the you from harm. Until the end of your next turn the shield absorbs up to 10 damage that you would have taken before shattering, including the damage from the triggering attack, spell, or effect. Line effects and spells, such as lightning bolt, stop completely at the sphere, if their damage is completely absorbed. Both the you and the shield are immune to force damage for the duration.

The shield reflects a magic missile spell back to the caster, using its spell casting ability, instead of absorbing damage.

At Higher Levels. When you cast the spell using a spell slot of 3rd-level or higher, the amount of damage the shield absorbs increases by 5 for each slot above 2nd.