Dude , there are some things to keep in mind . Firstly , some of the people that play this game have done so for more than a decade . That MT you say looked resplendent , probably looked like that when he was tanking Karazhan raids in 2008 . The fact is , some things become second nature which take time . Learning and dealing with boss tactics in raids is arguably one of the toughest . The more you do , the easier it gets . Did you do normal EN first ? Ursoc is intense , and Xavius can be tricky but both come with practice . The best time to practice is normal mode , which is more forgiving . Dont beat yourself up over it . Keep playing , practicing , improving your game and it will click eventually , it just takes longer for some due to experience doing similar things before . I tanked warrior since TBC , over 10 years , and i still make mistakes on those bosses . Some tips for heroic Ursoc Reduce all your raid frames down until its just you and the other tank . Everytime you see the other tank get a debuff , just taunt . simple . Because the debuffs are critical to the encounter , they are the only two that actually show up in the tiny raid frames and so they are easy to see when they are up . Xavius is harder than Ursoc , which is really just quite instense as one tank mistake can be a wipe , depending on the healers . For Xavius , you have to keep your situational awareness above all , dont get drawn into your rotations too much . Whenever you have to run to get dispelled , try and use some mitigation in case you have the add on you . Remember to taunt off the other tank in phase 3 to slow the rate you both end up going nightmare . Other than that its just about knowing what you need to do next before you need to do it ! Practice makes perfect .