I built a 4 x 7 motorboat trap. I use 25k hp argy with a good saddle and I kite yutys and gigas into the boat move the boat a slight ways off beach careful to stay in shallow water to avoid leads. Then tame at your leisure. Fyi to learn to center 4 foundations wide there is a giga boat building tutorial on youtube.

These guys are always with a bunch of carnos.

So get a wyvern !

Lure carnos away and kill them all (my wyvern does 600 damage per bite so if yours does less maybe don't kill 6 carnos at once and just lure them away)

Then lure the Yut into a dino trap.

Wyverns aren't affected by the roar effect

If you're lucky, you can find one of these alone. I would recommend targeting one that is alone, unless it is too high of a level or too low. Therefore you don't have to worry about Carnotaurus trying to kill you. Kill off anything ot might try to pick a fight with, like mammoths (you can use the prime meat from them to tame it). It takes a good amount of arrows so best if you use tranq darts instead. Just be careful of its roaring because there could be Carnos nearby.

A lot of expensive taming tips here... Here is the easiest cheapest way:

1 stone foundation

3 double door frames and 1 ramp...that's all you need...no behemoth gates that cost an exorbitant price....

Place the foundation and one double door frame on a side. Place a ramp on that side. On the opposing side, place 2 stories high door frames. It would look like this (somewhat): |_i\

Run straight through the trap and go between the door frames...ta-da...

Also, you may wanna kill carnos first with an argi...and bring a lot of tranq amo...

Stand on a bronto with platform saddle and a ton of health, ignore the carnos, shoot it, when it runs chase it on bary, thyla, raptor, or deino and shoot it from there, remember to keep them in cryopod while on bronto or they get fear roared and run off. Also beware there are direwolves everywhere you will hate them more than troodons

I just tamed a 135 by seperating the yuty from its carnos with an argentavis, yeh I got fear roared multiple times but after some time I placed 4 Dino frame gates with 2 doors on each end and had my friend run in and I close the door. Once trapped it was pretty straightforward tame just became cus things wil attack the yuty while it’s knocked out

Easiest tame of my life! Just build a 2x6 stone platforms then two stone door ways on the sides! You should need 20 stone doors. Then build a ramp out of what ever I used wood. The use a good flier like a tapy (because of stamina it might roar and scare your bird so you want tons of stamina) then just attack it and lure it in the Carnos might go in but mine didn’t so 1 more tip be warned I used a ramshackle crossbow just saying bring more arrows than Dododex says to use😬 I tamed a level 200 with this technique.

Easy to trap, you only need 4 Stone Dino gateway with 2 reinforced gates, put them up in a line with just enough space so you can get out, put the first door down, get the yutys attention, get him to run in the trap, put the door down behind him and bam, he trapped.. use darts preferrebly or use arrows with seconds between hits..

In my opinion, I feel that the Yutyrannus is much more versatile than the Rex considering it can take on both a support and attacking role. You will want to have at least one friend to lure the thing into a taming cage. Take care to eliminate the carno with it before trapping it. Close it off and use the traditional knockout method. When you're done, you'll have an invaluable PVP dino.