I believe there's some back-story that I haven't really been following concerning Elder Dragons. I hope Tequatl's one of them because if he's just a Junior Dragon I may need a bigger screen.
The fight itself lasted a few minutes. For a good deal of the time I was running around playing cub reporter taking photos and shooting video and for quite a while I was stuck inside a bone wall Tequatl dropped right on top of me, so I missed the finer points of the battle, such as whether that Asuran Laser ever fired.
In the end the dragon was defeated somehow and I got Gold for doing...something. Best dragon fight I have had in any MMO. Bring on the big ones!