This dino lacks any real utility due to the fact that it is a boss and therefore cannot be tamed.... But it drops the highest amount of element out of the four bosses if that can be seen as a utility of sorts
FYI the fire damage is percent of health based, its not reduced by armor or levelling health. In fact, the lower the health the better tbh. Because if you have a massive health pool your pig will struggle with all the health to recover, while if you only level melee the damage done by the fire can be more easily dealt with, and youre less likely to lose rexes/therizins.
A daeodon is needed for this fight. Herbivores are also needed. NO REXES OR ALLOS. They will die much quicker than herbivores. 1 yuty, 1 daeodon, 16 therizinos, and 2 Wooly rhinos would be good. With the rhinos u can go with a male and a female. 1 player on each. U can space out when u want to charge and there herbivores so they’ll take less damage.
This may require further testing but the dragon arena on the island is located under the swamp called “The gulch of Lametation”. I know this since I entered the arena in GCM and after flying up I used the admin rifle to teleport myself up above the barrier. After I surfaced I was at that swamp. When I tried to enter from the swamp itself i died so to enter the arena it may need to be active already.
For most of the players, the dragon is a boss that you fight by spawning it. For the rest of them, i.e. the ones that play Ark: Survival of the Fittest, have the dragon available for a short amount of time and able to be ridden, then it will turn it's back on you.