i just solo Jin'do with kiting him....that's the only way that i found...By the way, can i add some screenshot pictures in my reply?

I reckon that third boss fight, priestess Delrissa, is also a bit luck dependant. The combination of adds is really important naturally (rogue and warrior hurt, even at 80, where as the caster adds are fairly trivial). For this reason i can sometimes solo her, and sometimes ill wipe over and over again.

Kaelthas himself is a joke as long as you nuke him to 50% which shouldnt be hard (50k pyroblasts arent lovely).

Remember, you can see which Adds are there before killing the first boss (if I remember correctly on the bride, left hand side). If you get a combo you know you can't beat you can run out and reset the whole thing!

From watching the video, it doesn't look like getting him to 50% is much of an issue, but even if you didn't get there, couldn't you just use deterrence?

yeah the vid is of me back when i wasnt to amazingly geared. getting him to 50% is nothing, he drops fast. and for the pvp boss, yeah there are a few combos that are rough. the double melee isnt that big of an issue, the one i hate is the one in the vid that can make it rough, the one with the sham also healing. all the combos are doable even more so now with the better gear i have. havent gone back in some time now =/, kinda been burnt out on the game and just havent really cared lol, maybe 3.1 will change that (/pray)

Does avoidance work against geddons inferno?
And btw; wowhead seems to be wrong about the Inferno - Spell - World of Warcraft Inferno spell; according to them it does 1k/sec - but the last tic hits my pet for 5000 fire dmg...

EDIT: Thanks for the reply; seems to work - dmg from geddon is now ridiculous.

It works, pets with full Avoidance and 3/3 Resistance take almost no damage from the pulsing.

EDIT:
In response to Pijn after me. My first Geddon kill was using tier1 3-piece bonus to stand at 60 yards because I mistakenly thought his abilities had a 45 yard range. It worked nicely too, my pet tanked him to death. It took about 30 mins that way (and 2 respawns of trash to kill in between too).

Of course, further kills were done a more normal way. Like other posters, the next patch should make it possible to solo Garr (although I already have his bindings).

Right, i soloed heroic MgT twice now. Couple of comments:

1) What was your exact spec when soloing MgT Cex? I am mostly tank specced (i have 10% hp on pet instead of Imp hawk, Thick Hide instead of FF, and ofcourse Catlike Reflexes) and from looking at your vid, you seem to be mostly dps specced, i see Cobra Strikes which i dont have in my solo spec for example. The reason i ask this is because it seems you either do alot more dps on Kaelthas 100-50% than me, or you were just lucky with some things (as ill ask below)

2) In your vid i dont see any phoenixes spawn in Kaelthas p1, yet when i kill him i get one at least, usually 2 phoenixes spawn which requires my attention. I do see you looking around for them (Kaelthas yells the emote? But no Phoenix?) yet you have no phoenix to deal with. Edit: i watched your vid again, and reading your chat window, Kaelthas makes no emote 'Vengeance Burns' meaning you dps him quick enough to 50%

3) As a result of phoenixes i sometimes have Kaelthas casting the barrier on himself and casting the 50k pyroblast (seen it twice so far). However, both times the pet survived it either through luck (full resist?) or i nuked down the shield which automatically means the Pyro gets interupted i think (its a 5 man instance after all, and not all group setups had a interupt with them, opposed to the 25 man Kaelthas).

4) The Fireballs. They hit pet for about 5-6k and about 50% of these fireballs are fully resisted. However, it is still a huge amount of damage. Would you agree with me when i say this is a luck factor since having 2xt5 and Mend Pet ticks is not enough to outheal 4 fireballs hitting pet in a row? So far i have had to FD quite a few attempts after pet died due to too much damage on him. You mentioned not having 2xt5 in this Kaelthas kill shown in the vid, which makes me believe it is a luck factor even more. But even if this is a luck factor, it is not a big problem. If pet dies i just FD and go again

As i said, i have killed the four bosses in heroic MgT twice now.

First boss is fairly trivial, i dont even bother with destroying the crystals anymore, i just RoS through the explosions (half of which i resist anyway)

Second boss i handle exactly like in your vid: first 2 sparks, i myself kill one, pet the other. The sparks after that are all for my pet. The first spark gives me +50% damage which also means more healing for pet naturally. I first tried with all sparks going to pet = dead pet. All sparks to me = dead me, or me pulling aggro. But doing it the way you did it in your vid, its the perfect balance of threat, incoming damage, outgoing damage and healing.

Third boss: i now check at start of instance if the male naga (arms warrior) is part of the combination. For me personally, he is the hardest one with a charge, a hamstring and a Mortal Strike. The shaman is fairly trivial, he goes oom quickly while kiting all 5 of them towards the entrance, just like your vid. A very fun and interesting way to do this boss indeed, kiting them to the entrance

And well Kaelthas first 50% is the critical phase, after that it's a very trivial fight, i just use RoS on myself to mitigate some of the damage, bandage after the first air phase (yes i get two, seems you only *just* get a second one, which makes me think you solo MgT with a full dps spec with tank pet). Another thing i just noticed watching your vid again, didnt realize this before; Feign Death actually make the bubbles in air phase fly to pet for a second

Joining in on the Heroic MgT soloing talk. I have now soloed all the bosses three times.

I use a tankish spec with Cobra Strikes: (56/15/0). My pet is also specced for tanking, but I have skipped RoS: Pet Calculator - Wowhead. I've been meaning to take one point out of Spiked Collar and move that to RoS, but so far I have never remembered to do that while I've been at the trainer. As to gear, I use T5 gloves and shoulders, and switch my chest for T7 chest to keep the T7 2 set bonus too.

First boss is quite easy, I have so far not had any trouble with him (apart from one time where I managed to pull him while clearing the trash in the room). My tactic on the second boss is a bit different from the one shown in Cex's video: of the first two sets of sparks, I kill one myself and have my pet kill the other. After this I pop my cooldowns (BW+RF) and just nuke the boss down ignoring the rest of the sparks. So far, the boss has died before the sparks have killed me or my pet. I've been using also what arcane resistance gear I have, the cloak with enchant and the trinket from Karazhan quest, which does help.

At the third boss I have actually had the MS warrior every time. The other adds have never been melee though: engineer, mage, warlock and hunter in some combination. I put my freezing trap as close to the mobs as I dare, wait for the cooldown and then use MD and send my pet at Delrissa. The MS warrior has trapped himself each time at the start when he charges, leaving me free to kill the priestess. After Delrissa dies, I try to keep the warrior trapped and kill the casters first. So far this has worked, since the naga warrior has been the only one to try to come in melee range of me and trapping him has been quite easy. I haven't even needed to kite the mobs further than the previous room.

At Kael'thas I've gotten one phoenix each time, but have had no trouble meeting the time limit before he starts to cast pyro. I put a frost trap between the stairs and KT, to get a bit more time to kill the phoenix before it reaches me. I have not had my pet die to the fireballs, but that really says nothing about how dangerous they are, I might have just been lucky.

At my first clear the trash actually caused me more trouble than the bosses. I had forgotten the abilities of each and what I should kill first (the magisters do hurt a lot if they get to stack their buff). Getting better at it each time though, and having lots of fun clearing the place on my own.

How would you handle the combination of the arms warrior (male naga), fury warrior AND rogue (2 blood elf males). Not entirely sure if all 3 can be in one combination, but i do know at least two of these can be found in one combination. Naturally you could find out what combination Delrissa will have by looking downstairs before killing first boss, but just hypothetically speaken; how would you solve 3 melee adds then without kiting?

Is T5 necessary for MgT? I was on a break during T5 content and went right into BT/MH.