Merlin just watched as Arthur walked away from him dumbfounded. He couldn't believe that Arthur actually believed he could do that. Then he saw Arthur struggle to pick up the bar. Oh... great.
Merlin tried to smile as Arthur looked at him, then saw one of the giant flying creatures swoop down. His face fell and he cursed. He lifted up his hands and said his incantation. His eyes glowed and the creature was stopped a foot from Arthur and fell to the ground.