Dont be scared of them, get a flyer and make sure to have a high health and stamina, fly at him (make sure its only one or your dunso) and let him take a bite of your flyer once in a while then lead him into a square wall of dino gates with a trap in it. Once he is stuck quickly close up the open gate, laugh at him and shoot him (alot)

How to raise and tame a good Rex

1. Use crossbow with tranq arrows or rifle with tranq darts

2. Find the Rex a tough opponent to defeat

3. While he or she is fighting, open fire on the king or queen

4. Once the Rex is down feed it prime meat alongside with normal meat in case you run out of prime

5. Use narcotics on higher levels bio toxin might be needed.

6. Once the Rex awakens take them hunting for large dinos and bosses too but they have to be extremely high level

7. When leveling up switch between health and dmg upgrades

Please take good care of your tyrannus. PEACE

Step 1.get a bow or crossbow

Step 2.get a crap ton of trank arrows

Step 3.find a rex

Step 4. Find a cliff that the rex can’t climb

Step 5. Lur the rex to the cliff

Step 6.shoot the rex until it is knocked out

Step 7. Feed the rex raw meat/prim meat

Step 8. Enjoy Your rex

I tamed a lvl 40 male and a level 150 female and now I have an army of either glass cannons or tanks with no damage. I’ve searched everywhere for a 150 male and the best I found was a level 75. Atp I might have committed Rex extinction with the amount I killed for new ones to spawn

To add to most on here, the best way I've found is the cliff method but just in case you don't have a cliff take 2 metal billboards and place them in av shape using a tame with high hp find your rex of choice, coax it to the v, then tranq it with your tame behind you, once it's in the v use your tame as a door for the opening of the v.

Start the tranq process and knock it out, once knocked out use exceptional kibble for best results, keeps tame percentage at 100 and you get the extra lvl you need for it, yes they're tanks but with the rise of the giant bugs, they can possibly take down 1 low lvl but not 2. I was lucky to survive a mid lvl bug and a theri aka tickle chicken, also one the rex is down so reference the starve timer on here with the kibble for somewhat faster taming

Place 1 stone foundation near the rex you want to tame, (not too close) then 1 doorframe and door, both stone. Then place 3 stone walls around it. Add an extra layer on top of the base structure of stone doorframes then cap it of with a ceiling. Shoot the rex to get it’s attention, then run inside and the rex won’t be able to hit you, but you’ll be able to shoot it. This trap also works for Spinosaurus and dire bears.

You are too lazy for building trap or have issues building it (like me). You can also use diplodocus leveled in health. Set him on Attack your target and dind rex you want to tame. Shoot rex and your diplo will start attacking it. Since diplo doesnt do dmg only knockback he will act as a shield while you shoot rex with tranq arrows (darts recommended). As rexes torpor rises at around 80% he will start running. Just continue shooting until he drops down. For taming best you can use exceptional kibble, raw mutton, raw prime meat but raw meat will also work. After he is tamed you have a Rex!

Sorry for bad english and ty for reading

Why do big carnivores attack almost every thing they see? i found another high level rex i lead it to a cliff with my spino i put the spino on the cliff but the rex attacked carnos and the carnos killed it… just why? do big carnivores hate everything? irl they aint evil or have anger issues they just kill for food but in ark they attack anything even when theyre not hungry i hope wildcard adds a hunger feature for creatures so carnivores dont have anger issues in ark 2