Shield of Faith

1st-level abjuration

Casting Time: 1 bonus action
Range: 60 feet
Duration: Concentration, up to 10 minutes
Components: V, S, M (a small parchment with a bit of holy text written on it)

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

Spell Lists: Cleric, Paladin

Source: Player’s Handbook