STONESKIN

4th-level abjuration
Casting Time: 1 Action
Range: Touch
Components: V, S, M (Diamond Dust Worth 100 Gp, Which The Spell Consumes)
Duration: Concentration, up To 1 Hour
Usable By: Druid, Ranger, Sorcerer, Wizard, Artificer

  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.

Players Handbook, page: 278