Hardens the subject's skin, but it has an unusual caveat: it only lasts one second worth of actual use per level. On any given turn this effect is used, it will work for any number of hits.

Affliction [46] 
    Advantage [+140%] 
        Damage Resistance 10 [3.5] 
            Limited Defense (Physical Attacks) [-20%] 
            Reduced Time (x1/60) [-35%] 
            Magical [-10%] 
            One Use Only [x1/5] 
        Injury Tolerance (Damage Reduction) 10 [10.5] 
            Limited Defense (Physical Attacks) [-20%] 
            Reduced Time (x1/60) [-35%] 
            Magical [-10%] 
            One Use Only [x1/5] 
    Extended Duration (Permanent) [+150%] 
    Malediction (As Regular Spell) [+100%] 
    Based on Activation Roll [+5%] 
    Magical [-10%] 
    Spell Components [-30%] 
        Must say "stone skin" in Latin 
        Must sprinkle granite ($1) and diamond dust ($100) on recipient 
Levels 2+ [+14/level] 
    Add another use [+140%]