Illidan's fight was more technical than Kil'jaeden. The video was much more technical to make too ^^. I thus hope you like it.

Prismatic Elixir, Drums of Forgotten Kings, and especially Void Star Talisman, was important to survive the second phase. Fames of Azzinoth inflict many damage and the VoidWalker survives with difficulty without these objects. It's recommended to prolong P1 for wait CDs (DemonSoul, SoulShatter ect..)

This is a long battle, it is always necessary to keep an eye on the life of the Felguard, and use the Metamophosis as an armor CD for this demon.

The rest was not a problem, used the Glyph of ShadowFlame for parasits, manage aggro, and take his time.

Musics by Two Step From Hell :
Atlantis
Titan Dune
Tyrianis
Call Of Arms
Power Of Darkness
Earth Rising
Merchant Prince

Main Addons :
X-Perl
Sunnart
SexyMap
Quartz
Bartender 4
FortExorcist
Opie
SCT-Damage

Sorry for my bad English :(