I would use the weaknesses against them! Trex has small arms... He can't win a game of fisticuffs Ankylosaurus is big turtle... Roll him over (not sure how) Spiny is like a big alligator or crocodile.... Wrestling ring is required Raptors... A pack of them.... I will use the upside down turtlesaur as a distraction to run away and make weaponry from wood and stuff and then battle them to the death... I will hone my skills through boxing trex and wrastlin that spiny bugger....