I have a brilliant idea save all you guys spending weeks and weeks trying to unlock Mortem rex,thinking of all the different strats you could try then all them weeks hoping to get the big fuses only to be really disappointed ev time you hit a 15 ( which is a lot!!) then you get it to 27 and stick 27 boosts on it now your ready ro maybe put it in main team.Well FORGET it save the effort and money if you buy boosts and just use a level 18 legendary Sloth thing you know the Ugly stupid tree like thing coz my mortem just got its but kicked so off with the boosts and cya Mortem your not needed and not wanted Thanks Ludia hope cera and trebax are better !!!