Cannot get Heartbreaker achievement in Ulduar

Gameplay Dungeons, Raids and Scenarios
1
Cannot get Heartbreaker achievement in Ulduar, XT-002 dies each time i start killing the heart. I start attacking the heart slowing and with no aoe when it pops out but when it gets to around 20% health XT just dies. Last achievement I need for glory in Ulduar and I thought it would be the easiest haha. Any help?
2
The mechanic is that XT drops his heart at 75%, 50%, and 25% health. When his heart drops, the boss should be taking no damage - but it's probably best to just single target when the heart is fully dropped. The reason he dies as the heart is dropping is because his health went to 0% before the RP of the heart dropping could start and finish - probably due to dots or because you or your gear OP.

You probably want to take some gear off (especially any legendaries, trinkets and enchanted items that do damage without you knowing it (Mark of the Hidden Satyr)) and take your weapon off, initially. Autoattack XT until he's sub 75% (might only be 1 autoattack) then hard stop until the heart has dropped and has a health bar. Kill the heart. Put your weapon back on. Kill XT. Profit.
3
08/03/2018 12:35 PMPosted by Neall
The mechanic is that XT drops his heart at 75%, 50%, and 25% health. When his heart drops, the boss should be taking no damage - but it's probably best to just single target when the heart is fully dropped. The reason he dies as the heart is dropping is because his health went to 0% before the RP of the heart dropping could start and finish - probably due to dots or because you or your gear OP.

You probably want to take some gear off (especially any legendaries, trinkets and enchanted items that do damage without you knowing it (Mark of the Hidden Satyr)) and take your weapon off, initially. Autoattack XT until he's sub 75% (might only be 1 autoattack) then hard stop until the heart has dropped and has a health bar. Kill the heart. Put your weapon back on. Kill XT. Profit.
That's strange because i did exactly that. Unequipped weapon, waiting for heart to be all the way down, and then starting auto attacking it, with no dots or aoe throughout the whole fight. I tried this on 4 toons and it still didn't work. I'll have to try again on next raid reset.
4
08/04/2018 07:43 PMPosted by Jakweekwee
That's strange because i did exactly that. Unequipped weapon, waiting for heart to be all the way down, and then starting auto attacking it, with no dots or aoe throughout the whole fight. I tried this on 4 toons and it still didn't work. I'll have to try again on next raid reset.
The main body of XT does take damage during his heart phase. Pre-existing DOTs and AOEs do damage him then, but also know that the fact that damage on his heart does transfer to the main body while the heart is still active. It's possible that the damage transfer is screwed up in some manner with regards to scaling.
5
Submit a bug report.

I have not tried this since the pre-patch. I knew I had trouble killing XT before the heart in the pre- pre-patch
6
Works fine:
1. Leave your gear on
2. auto attack XT till he goes to ~75%, stop attacking. He will emote that he is tired and shutdown, heart pops out.
3. Kill the heart. Just destroy it.
4. XT comes back online, kill him.

This type of disconnect is why they added a toggle for hard mode after Ulduar.
7
Finally on my 5 try I figured it out, u have to do it with the raid difficulty on 10 player or else it won’t work!
8
There is no raid difficulty for Ulduar anymore - it is flex - since they made it a timewalking raid.
9
09/12/2018 06:04 PMPosted by Neall
There is no raid difficulty for Ulduar anymore - it is flex - since they made it a timewalking raid.
Well actually I had tryed 5 times and it did not work and my raid was on 25 man so I changed it to 10 man and right away it worked so I finally have the mounts now.
10
That would be super weird, cause there is no 25 man or 10 man version - only flex - setting the difficulty on the outside has no effect on Ulduar. It will say 10 man until you have 11 people in the raid and then it will say however many people are in the raid up until you have 25 and can't add anymore.
11
I just used the goblin rocket you can get from blingtron. I don't recall that ever being able to hit hard enough to outright one shot the boss. Though not sure if that gets any scaling, just make sure to not have any gear that procs DoTs or damage auras.

Otherwise, just auto attack.

If you do proc a DoT and it goes up as the heart drops. Burn that heart down quick, IIRC the DoTs will continue to tick and at Argus gear levels, DoTs from the crucible can do a number on him; specially, if your first hit almost kills him.
12
09/13/2018 05:57 AMPosted by Icewitch
09/12/2018 06:04 PMPosted by Neall
There is no raid difficulty for Ulduar anymore - it is flex - since they made it a timewalking raid.
Well actually I had tryed 5 times and it did not work and my raid was on 25 man so I changed it to 10 man and right away it worked so I finally have the mounts now.
13
I'm not sure what else you may have done differently, but I tried this also, and really took a long time killing the heart, had the whole repair team out and everything. No gear, no weapon, made sure I was on 10 man, etc etc and same thing as always, instant death and no achievement. This is my EIGHTH time trying and I've done everything I've seen, read, and could think of and can't get this last achievement. Is this a bug?? Because this is too bizarre and very frustrating
Any thoughts would be appreciated.
And remember, I'm doing this with NO gear, NO weapons, pure punching. So no DoTs or AOEs possible. And I've tried it on 3 different classes between lvls 110-120
14
11/09/2018 12:14 AMPosted by Brammblerose
and really took a long time killing the heart

It's not about how long it takes to kill the heart. It's that damage to the heart also does damage to the body. If you get XT too low before the heart drops, the heart damage will kill him. You need to get him low enough to get the heart to drop, but not any lower so the damage you do to the heart won't result in him dying during the heart phase.
15
11/09/2018 02:59 AMPosted by Zothlar
It's not about how long it takes to kill the heart.
You do need to kill the heart in about 30 sec I think, or a stage transition will happen, either a new heart will appear (based on damage) or he will go back to his normal mode if you didn't kill the first one. You have a lot of time to do it, but you don't have forever. The first heart should pop out at 75% heath, so I would suggest just stop dps at that point and let him transition into a heart phase then deal with the heart. It will take a couple of seconds where you can still hurt him to actually see the heart so just stop at the 75% marker vs when the heart comes out.

Cheers,
Have a nice day.
16
I did do this, this week. I threw 1 (might have been 2) single target / not dot abilities (heroic throw) at xt - needed him sub 75% but not much more - waited for the heart to drop - single target killed the heart - he healed to full and went all crazy - killed xt - got 2 caches. I took no gear off to accomplish this.
17
11/09/2018 12:43 PMPosted by Merlïna
You do need to kill the heart in about 30 sec I think, or a stage transition will happen, either a new heart will appear (based on damage) or he will go back to his normal mode if you didn't kill the first one. You have a lot of time to do it, but you don't have forever.

Sure, but that's not related to what's happening here. They're talking about the boss dying while they are in the heart phase, and trying to kill the heart slowly to fix it. The actual fix is not getting XT too low before the heart phase.