Looks like it worked. It's glowing. Magnus almost looks amazed at his skills, but he didn't do it alone. How will this help Luke? I guess we'll find out.
Magnus seems fed up with Clary and the shadowhunters. Why do they always go to him when there's trouble? He probably wishes he never got involved with Jocelyn all those years ago.
Sometimes it's better to just take matters into your own hands. Valentine will get what he wants, and will do whatever is necessary to get it. Jace better find Clary...and fast.
Clary: Simon, how could someone as smart and perceptive as you not realize the person sitting right there is in love with you? Simon: I guarantee you I'm not the only smart, perceptive person to make that mistake.