Physical/Fire/Energy Resist are most important. This one's Physical Resist is decent, Max Fire Resist, decent Cold/Poison/Energy Resist. I've killed/tamed tons of these new Great Wyrms, both on TC and Napa, and i've never seen one with above 950 Health after tame before this one. First Great Wyrm i tamed on Napa had 926 Health, high Physical Resist but very low Fire Resist, 65%. Trying to get the Perfect combination of Stats/Resists is nearly impossible, so all in all, this is still a high end Great Wyrm. Plus, at 73% Physical Resist, it's still a massive tank. With 90% Fire Resist and it's high Health, FS or Firebreath doesn't even scratch it.
Got this one to spawn by me using a Fully Trained Hiryu to tank Dragons and Great Wyrms, while a friend of mine Discoed them and used her dog to attack.