Not in order, just listing them on my post.
Hakkar
Ragnaros Fireland Version
Archimonde WOD Version
Deathwing
Lich King
Kil'jaeden during the Sunwell
Garrosh on Old God Juice
Illidan
Kel'thuzard
Gruul
Lei Shen
Sha of Pride
C'thun
Yogg Saron
Malygos
Ak'vair