Trs
Barkskin
2nd-level Transmutation · PHB, p. 217
Casting Time1 action
RangeTouch
ComponentsV, S, M (a handful of oak bark)
DurationConcentration, up to 1 hour
ClassesDruid, Ranger
Description
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.