Baby Rex’s fills it in one shot…hop on it and start killing…back up as you attack every hit from a Dino takes its effectiveness down…you don’t need to trap it…I still can’t figure out why people are trapping it…the desmodus potion works on it as well they last 4 hours so make one before you start hunting for a car….for some reason it kicks at random times so around 200 ish seconds try to keep the Dino in an area that has no other Dino’s if he attacks stuff while your not on him he will lose effectiveness if there is a trap close buy that’s unlocked try to get kicked off inside the trap then repeat it not time sensitive so just get to a safe place…if you have traps on a pve server unlock it so everyone can use it and they don’t have to make their own creating and endless maze of traps in every damn area it spawns lol