Mage Armor

Abjuration

Level: 1
Casting Time: 1 action
Range: Touch
Components: V, S, M (A piece of cured leather.)
Duration: 8 hours

You touch a willing creature who isn't wearing armor, and a protective magical force surrounds it until the spell ends. The target's base AC becomes 13 + its Dexterity modifier. The spell ends if the target dons armor or if you dismiss the spell as an action.