The fear roar is amazing for taming because the damage increase reduces the amount of tranqs you would need to use to knockout something. make sure to have already caged the creature though because if you don't they will run away.
These bad boys are easily the best source of Extraordinary Kibble eggs (except maybe Deinonichus). If you're lucky, you can tame a low level breeding pair and mate them to get more females and make a Kibble farm, or get fertilized eggs that can be cooked too!
This thing is an absolute beast. I tamed a level 120 and pumped nothing but stamina so it could yell at my dinos to do better when fighting the broodmother. They were so inspired, that they got a 25% damage bonus, and a 25% damage resistance bonus meaning we completely shredded the broodmother when it may have been a close fight. One or two of these behind your army and you, my friend, have comrade stalin himself telling your troops to fight to their last breath
This thing got the same base stats of the rex, it's just a smaller and fluffy rex that has a buff roar and a debuff roar, you can literally skip the rex unless you want the tek rex or the tek saddle but you'll have to do boss fights for the tek saddle, but I still think the Yuti is better unless you put him against a tek rex, anyways you can just try to skip the rex and tame this also because it's a big fluff alpha dodo
The funny thing about these is when you scare something it literally poops ! So if your like me and you like to defend your base with lots of plant species - x or you like to grow lot of crops for recipes and tameing. This is an amazing fertilizer collecter . Also it's scare roar will give any creature I big damage reduction . I was taking a freshly tamed one home and I got jumped on by 3 raptors and I barely took and damage and the raptors ran away when my yutyranus roared
Once tamed, upgrade stamina if you chose a low level individual. Their roar takes a lot of stamina, so higher levels are recommended. If you can get a lot, you can position them surrounding your base, and they will roar at any attackers that come too close, weakening them and even scaring them off.
Yes yes ou can ally wild carnos to help you, but what would be better is if it could bend enemy tribe's carnos to do your bidding! Roar next to a tribe with mostly carnos and watch them break them from the inside, how evil would that be?!
Beware that while it has the same base stats as the Rex, it has horrendous attack speed, which results in very bad DPS. The Yutyrannus is mainly a support Dino, so pump mainly Hp and stamina (Stamina only needs to be pumped if you plan on manually riding and buffing).