If i rememebr correctly the timer for teh dragon to land is 45 seconds after the first 2 guys are killed, the only time i have had problems picking up the dragon is when he comes down and bellowing roars and fears me to the other side of the area, i try and tank the guy where the dragon spawns so that i can easily pick up the dragon whoile continuing to hold the guy. after the guy is down i just run back and forth through him to keep his fire breathing thing off of me and the rest of the group. ONly thing i really hate is when he fears me behind the wagon ... that is usually GG for m (Gnome tank with LoS problems =/).