Mage Armor

1st-Level Abjuration
Casting Time: 1 action
Range: Touch
Components: VSM (a piece of cured leather)
Duration: 8 hours

You touch a willing creature and a protective magical force surrounds it until the spell ends.

Target. A willing creature who isn't wearing armor.

Effect. The target's base AC becomes 13 + its Dexterity modifier.

Special. The spell ends if the target dons armor or if you dismiss the spell as an Action.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can target an additional creature for each spell slot above 1st.

Source: PHB 256, SRD

Changelog

Added upcasting option.