So I found a level 150 Carch chilling on the mountain, eating random dinos. I tried to tame it, because I have female and male high level rexes, so i bred them and cryoed the baby. When i came back there i saw the Carch fighting a frikin Giga. Lucky for the Carch, Giga was low lvl. I trapped the Carch and gave it the baby rex. I killed some other dinos around and tamed it, then brought it to my redwood base. I saw a lower level Carcha on that mountain so I also tamed it. I was happy i got a male and female, so I just bred them until i got a lvl 946 Carch :)