Stoneskin

Transmutation [Ward]
Circle: Shaman 4
Casting Time: 1 standard action
Range: [Melee]
Target: Creature touched
Duration: [Scene]
Saving Throw: None

Your touch imbues an ally's skin with supernatural toughness. The target gains a shield granting [Lesser resistance] to all damage. Whenever the target's [Lesser resistance], [Resistance], or [Greater resistance] reduces the damage that creature takes, the amount of damage reduced, to a maximum of half the target's level, is added to the shield's mitigation pool until the spell ends. Once the shield's mitigation pool accumulates an amount of damage equal to 4 times your level, the spell ends. If an amount of damage would be added to the mitigation pool that causes it to exceed 4 times your level damage, an amount of damage is added that causes the mitigation pool to have only 4 times your level damage instead, and the rest of the damage that would be added is instead dealt as if the target was not affected by this spell.