When want to kill, just let it aggro on you then go to the nearest shoreline. Make sure it doesn’t lose aggro and is still following you. Flying mount will be good, and an aquatic tame 500 meters away or more to keep safe. Lure into water, wait for it to drown then go to aquatic tame (basil might be good) then eat him.
I tamed one as of Saturday 25 September 2021, I didn’t expect for each level up the health would only go up by 15. The stat increase isn’t high, I have a rex than is tougher than my TAMED Giga, wild ones are extremely dangerous, tamed ones are just, crap compared to wild.