The Rex, despite it’s reputation in media everywhere else is a piece of cake here in Ark. Maybe I might be exaggerating slightly since I got brutally mauled by one trying it on foot, granted I had 477 tranqs in my inventory but oh well. Anyway to tame the Tyrant Lizard King you need: A balm, kibble prime meat or scorpion kibble, Bio-Toxin 4 Stone Gates, 100-ish Tranq arrows, 1-3 Bear Traps, 900 armor at the minimum and an optional fast moving mount. Set up the Gates and Bear Traps in your hot bar, place 3 of the gates in this manner |_| and put the bear traps in it, then lead the rex on foot or with the mount to the trap, once the rex stops moving and starts biting put the gate. Now tranq it, and put the balm and either hunt for prime meat or put kibble, force feed bio toxin in this process. Voila, you now have the second most ferocious carnivore in Ark and the most Famous. Have fun with your new toy. - The Nameless Tuso