Stoneskin

4th-level abjuration

Casting Time: 1 action
Range: Touch
Components: V, S, M
Duration: Up to 1 hour

Material: Diamond dust worth 100 gp, which the spell consumes.

This spell turns the flesh of a willing creature you touch as hard as stone. Until the spell ends, the target has resistance to nonmagical bludgeoning, piercing, and slashing damage.

Druid · Ranger · Sorcerer · Wizard

On these spell lists

Druid spells
Ranger spells
Sorcerer spells
Wizard spells
4th-level spells
Concentration spells
Abjuration spells

Other 4th-level spells for the same classes

4th level: 4BanishmentAbjuration · 1 action
4th level: 4Freedom of MovementAbjuration · 1 action
4th level: 4Private SanctumAbjuration · 10 minutes
4th level: 4PolymorphTransmutation · 1 action
4th level: 4Dimension DoorConjuration · 1 action
4th level: 4BlightNecromancy · 1 action

Questions

What level is Stoneskin?

Stoneskin is a 4th-level abjuration spell.

Which classes can cast Stoneskin?

Druid, Ranger, Sorcerer and Wizard have Stoneskin on their spell list.

Does Stoneskin need concentration?

Yes. Its duration is up to 1 hour.