The ground trembles as a misshapen hulk forms from rocks and dirt to shelter your companions from harm.

Daily   ✦     Conjuration, Primal
Minor Action      Ranged 5

Effect: You conjure a scion of stone that lasts until the end of the encounter. You and your allies gain a +1 power bonus to all defenses while adjacent to it. As a minor action, you can dismiss it to grant you and each ally adjacent to it temporary hit points equal to 5 + one-half your level.

Published in Dark Sun Campaign Setting, page(s) 46.