Lan Wangji sends a wave of power out, knocking the onlookers and the healers off their feet when Klaus's body jerks, a warning to stay away as he drops back to his knees. He immediately presses his hand flat against Klaus's where he'd been torn open, pushing energy in again. He can feel the drain on his Core where there had been none, a sign that Klaus is somehow alive yet again instead of a fierce corpse as he'd momentarily feared. It makes no sense, his healing did not do this, could not do this. It would have cost him his Core and he'd felt nothing, just an empty shell accepting none of his magic.

"I am here," he murmurs, trying to hide the sight of Klaus, vulnerable and bloody with his voluminous robes. "Can you hear me?" He does not know what he needs, cannot tell so he simply threads his fingers through Klaus's, hand glowing blue as he tries to share his energy.