2nd Level Transmutation

Casting Time: 1 action
Range: Touch
Components: V S M (A handful of oak bark)
Duration: Concentration; Up to 1 hour
Classes: Druid, Ranger

You touch a willing creature. Until the spell ends, the target’s skin has a rough, bark-like appearance, and the target’s AC can’t be less than 16, regardless of what kind of armor it is wearing.