The magmasaur will be Arks equivalent of long ranged artillery, being able to fire powerful blasts at long distances, but it is also effective at close range, having a Velonasaur stile AOE attack and doing damage to anything withing range just by existing. It is not however effective everywhere all the time, depending on biome, weather and temperature changes how strong its attack is, how much stamina and material is used and so on. In high temperatures and dry areas it does most, while cold and wet areas it does least. Lastly for convenience purposes it is also a portable forge and can swim in lava. Note:The magmasaur does damage to friendlies near it as well, only one who is safe is whoever is in the saddle, so this creature will need to be kept alone away from the base or in a separate pen.
Get one of these, they harvest everything in abundant quantities.
Want to build? Bring your thatch and start harvesting.
Want metal to trade with other tribes? Get a Magmasaur. They tend to get metal out of any source of stone or metal node anywhere, and better than an Anky... and I have 900 mêlée Ankys, and I would still use a Magmasaur.
And they are FAST while they harvest. They sprint around like nothing.
Eat a Dino that drops raw prime and you need it cooked right now? “Enable Smelting”. Your prime will be cooked.
Your Magmasaur is low on food? Force feed it stone. Works better than meat to fill its food.
Want to tame a basilisk? Breed your magmasaurs and use the fertilized eggs to tame a basilisk. Then have your new basilisk follow you and carry your junk, just level weight.
Want to survive inside the volcano on Genesis during an eruption? Mount your Magmasaur and don’t get out of the saddle until the eruption is over. It’ll kill your shoulder pet, though.