[Note] This requires at least 2 pets.
I made a similar thread like this back in January, but since then class mechanics have changed and there is now an easier way to accomplish the same thing, since I didn't want to necro a thread and there are some changes I decided to post a new one.
Old Thread: http://www.mmowned.com/forums/world-...marrowgar.html
Marrowgar has an ability called Saber Lash: Saber Lash - Spell - World of Warcraft
Saber Lash is his main damage ability, it's what requires tank healing (For the most part) on this fight.
Saber Lash is considered an AoE.
Now if you're a class that has a permanent pet, (Unholy Death Knights, Hunters, Warlocks, Frost Mages) you should have noticed in 4.0.1 you gained an ability for your pet called "Move to" where you can select a spot on the ground to move your pet to.
What you can do with this is, have your main tank stand in a set position every phase 1, place your pet on that set position. Since all pets receive 90% reduced damage from AoE effects these pets basically reproduce having three tanks, except for the fact that the pets won't need healing.
This exploit is more useful if you are low on tanks, or going for a speed kill. This isn't really needed but it is infact an exploit and can be useful in select situations.
Hell even if you have more than two pets in your raid you can just put them all in the set position and require next to no tank healing.
(If only there was still the hunter pet bug around, that would be funny)
Thanks for the read, enjoy.