Shield of Faith

Level: 1
Classes: Cleric, Paladin
Casting Time: 1 bonus action
Range: 60 feet
Components: V, S, M (A small parchment with a bit of holy text written on it.)
Duration: Up to 10 minutes
Source: 5e Core Rules

A shimmering field appears and surrounds a creature of your choice within range, granting it a +2 bonus to AC for the duration.