Literally just tamed this, do not trap it. I tried and it bugged out. Cryo a baby Rex, take it a little ways away from the carcho, kill the baby rex, and carry it over slowly. Itโ€™ll sniff the air, look at you, then eat it. The baby Rex will fill the trust bar. Immediately get on and kill everything in your path. You only have like 500 or so seconds. Good luck.

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