I'm not going to delve deeply into heroic mode guides.  None of the fights are "drastically" different from normal, and majority of normal mode mechanics will still apply.  I'm going to just focus on the main differences between Normal and Heroic and give tips on how to counter them, and post guides/videos of kills, etc.

1. Heroic Jin'rokh the Breaker
2. Heroic Horridon
3. Heroic Council of Elders
4. Heroic Tortos  (FUUUUUUUUUUUUUUUUUUCK NO)
5. Heroic Megaera
6. Heroic Ji-Kun
7. Heroic Durumu the Forgotten
8. Heroic Primordius
9. Heroic Dark Animus
10. Heroic Iron Qon
11. Heroic Twin Consorts
12. Heroic Lei Shen
13. Ra-den