Eldritch Shield

You summon a spectral shield made from eldritch runes that protects you from the next attack made against you. While the shield is protecting you, it sheds bright light in a 5-foot radius and dim light for an additional 5 feet. When you take damage from an attack, reduce the damage by 1d6 and the spell ends.

Upon reducing the damage of an attack, you may use your reaction to cause the shards of the shield to strike a creature of your choice that you can see within 30 feet of you. The target must succeed on a Dexterity saving throw or take force damage equal to your spellcasting modifier.

Additionally, the spell ends early if you try casting it again or if you become incapacitated. 

At higher level: The spell's damage reduction increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).

Aditional info at the link: gmbinder.com/share/-LoS35g3k0eK_Tx6j5Xm