Stoneskin

Stoneskin
Abjuration
Will negates (harmless)
SR: Yes (harmless)
V, S, M (granite and diamond dust)
1 standard action, 10 minutes/level or until discharged, touch
The warded creature gains resistance to blows, cuts, stabs, and slashes. The subject gains DR 10/adamantine. It ignores the first 10 points of damage each time it takes damage from a weapon, though an adamantine weapon bypasses the reduction. Once the spell has prevented a total of 10 points of damage per caster level (maximum 150 points), it is discharged.
Target: creature touched
Professions
Alchemist [4], Arcanist [4], Bloodrager [4], Druid [5], Inquisitor [4], Investigator [4], Magus [4], Shaman [5], Sorcerer [4], Summoner [3], Wizard [4].

Celestial Focus
South Star
Material Components
Granite and diamond dust worth 250 gp.
Related School
Abjuration
Effect Duration
10 minutes/level or until discharged
Effect Casting Time
1 standard action
Range
Touch
Legality
Legal to know and use.