The Ironsong Tribe

Fatboss videos are great videos to learn the bosses on Normal/Heroic Difficulty. They have clips showing each abilities, and two knowledgeable players who explain their strategy in dealing with each boss mechanics. I find these more clear and understanding than written guides.

Hell Breach
Hellfire Assault - https://www.youtube.com/watch?v=eLxeIQCanx0
Iron Reaver - https://www.youtube.com/watch?v=dZ2zQ9H8lds
Kormrok - https://www.youtube.com/watch?v=Ysn91JHy21U

Halls Of Blood
Hellfire High Council - https://www.youtube.com/watch?v=UMGLnJuXvpg
Kilrog Deadeye - https://www.youtube.com/watch?v=mee3Sv79KL0
Gorefiend - https://www.youtube.com/watch?v=RpKMt6Hw5KE

Bastion of Shadows
Shadow-Lord Iskar - https://www.youtube.com/watch?v=8mLKQztFSLY
Socrethar the Eternal - https://www.youtube.com/watch?v=ZZGYt3V9_cY
Tyrant Velhari - https://www.youtube.com/watch?v=nkLf9thG01w

Destructor's Rise
Fel Lord Zakuum - https://www.youtube.com/watch?v=wg0_F2uAu1I
Xhul'horac - https://www.youtube.com/watch?v=wBtkH1XLcBY
Mannoroth - https://www.youtube.com/watch?v=O3MhC4DpqTI

Archimonde - https://www.youtube.com/watch?v=wlT3Jaz_GWQ

Updated the post, with the new videos for Hellfire Assault, Iron Reaver, Kormrok, Hellfire High Council, Kilrog Deadeye, Gorefiend, Shadow-Lord Iskar, Socrethar the Eternal, and Tyrant Velhari.

Thank you, Castien!

-Zlinka

All videos are updated.