Probably i start on the island, and the game has brutal one, and i select to respawn on zone medium category, n then after i was like level 60+, im trying to get some tames n then i found this level 250 beast male trying to eat diplodocus, and without think longer i start tranq rex cuz the rex were probably focused on diplo, and after some minute like 17m finally i got my first rex! So excited :) and im looking for the high level female one for breeding this lonely, hope wildcard spawn a level 300 rexs!