While the staff did amplify Sabine's abilities, it was really her knowledge and experience that truly allowed her success in reviving Yerig. She restarted his heart, then manually forced him to begin breathing once more. Fortunately, she had acted quickly enough that his brain had not died along with the rest of him. Had that come to pass, no amount of magic would have been able to save him. 

Yerig's breaths were shallow and unsteady at first, but gradually grew more firm. Still, he was delirious as his mind slowly drifted into consciousness. He opened his eyes, only to quickly cover them upon looking straight up at the sun. "I, where...what is going on?"

From Do'rhajul's point of view, he may as well have been looking upon a miracle before him. He still stayed back from Sabine, but Yerig awakening gave him something he knew he could, and should, be doing. "It is alright, friend. You are alive; I believe the danger has passed. Arinette betrayed us. She tried to kill you, and ordered me killed. She and the others..." He began as he cast his gaze down to the nearest body, paying particular attention to the slow rising and falling of his chest. "I think they are still alive. The lycan defeated them, then healed you." 

Again, Do'rhajul froze in place. He stared off at seemingly nothing, contemplating his own thoughts for a time. Eventually, he knelt down and picked up his sword by the middle of the blade, then placed it atop Spellbreaker in his arms. He walked up to Sabine, knelt down onto one knee in front of her, then extended his arms forward to offer both Spellbreaker and the blade to her. "They are yours. I offer them to you. I offer my surrender to you."