The witch, Benjamin Lee cast his spell so he could intervene in this situation and save Sam. "Salire per Spatium!" He teleported in the room with Sam and the others, and his skin tight forcefield covered his body, shielding him from the glaring power of Samael, for now. 
"Samael! I demand you stop this at once!" He raised his right hand, ready to cast a spell that could banish Samael's vessel to the darkest ocean depths. He gestured with his left hand and attempted to slam Cason through the Hotel wall, causing him to fly scores of feet outdoors. His sense of danger was a strong sensation, and he knew that if this didn't go well, then he was dead.