So I've just come out of a Twin Peaks BG where we lost partially due to a Druid EFC. The guy had 400k HP, flew from the flag room over the lake with the Goblin Glider and then proceed to move at 100% mount speed in travel form to the spawn point. At one point we had four guys on him (Arms Warr, Frost DK and some others), and the guy could just run off without us able to catch up. He used war stomp, disorientating roar and such, but it was impossible to hit the guy for more than a few seconds before he ran off. I understand the Glider, and don't mind that, its the fact that even if we were near him, with no support he could escape and run rings around four people, get out of practically any control, and be out of range with nothing to stop him. How the hell do I slow this guy? Playing Arms warrior, using Shockwave and Hindering Strikes Glyph, but he trinkets and changes form to get out of these?