You touch a willing creature. Until the spell ends, the target's skin has a rough, bark-like appearance. For the duration, the target has the following benefits:

• The target's AC becomes 16 for the duration, unless it is already higher.

• The target has resistance to bludgeoning, piercing or slashing damage.

• If you are the target of this spell, you automatically succeed on Constitution saving throws to maintain concentration on this spell.

If the target is hit by an attack or it takes fire damage, it loses these benefits until the beginning of your next turn.