Stoneskin, Communal

Abjuration
Level: Alchemist* 5, Druid * 6, Hunter * 6, Inquisitor * 5, Sorcerer */Wizard * 5, Summoner * 4
Components: V, S, M (granite and diamond dust worth 250 gp per creature affected)
Casting Time: 1 Standard Action
Range: touch
Target: creatures touched
Duration: 10 min./level or until discharged
Saving Throw: Will negates (harmless)
Spell Resistance: yes (harmless)
  This spell functions like stoneskin, except you divide the duration in 10 minute intervals among the creatures touched. Once the spell has prevented 10 points of damage per Caster Level (maximum 150 points) for a subject, the spell's effects end for that subject.