Divine Aegis

Either manifest a shield of radiant light, or imbue the shield in your hand, increasing your AC by 2. Additionally, choose a resistance to take for the duration of the spell. Once active, as a reaction, you can put yourself in front of your allies, imbuing the space behind you with this resistance in a 10 foot sphere.

Using a Higher-Level Spell Slot: Casting at 3rd Level increases additional AC by 1. Casting at 5th Level increases additional AC by 2 and an additional resistance.