Having been escorted back to the camp by Lady Vashj and the rest of the naga army; Illidan rests for a short while until he regained a bit of his own strength. Illidan used a lot of his own strength and powers upon the many battles he had against the forces of the Legion in Outland. Sealing the last dimensional gateway of Ner'zhul has taken quite amount of magical energy from the demon hunter. Slowly regaining his own strength back upon a short stop of retreat within the base, all of a sudden, an ominous laughter fills the air. A vast army of demons suddenly emerges from out of nowhere, facing off Illidan and his forces within their camp. Amongst the demonic ranks is none other than the dreadlord Mephistroth, who just revealed himself to Illidan and Lady Vashj for the first time. With the vast army of demons standing upon a short distance outside of the naga base; Illidan and his forces ready themselves to what seems to be another upcoming heavy war battle.

Mephistroth: "It seems that the dark curse on your body is now slowly killing you from within. I have been watching you, demon hunter. At this time, I suppose you already know who I am."

Illidan: "Mephistroth! So we meet at last, dreadlord!"

Mephistroth: "I have come in behalf of Lord Kil'jaeden to finish you and your lapdogs once and for all! You are nothing more, but a weakling failure, Stormrage! Soon now; the Burning Legion shall once again rule over Outland, and your petty little vainglorious reign shall come to an end!"

Illidan: "It is you who shall soon fall, dreadlord! You and all of these vile minions of yours!"

Mephistroth: "Is that so?! While I commend your efforts; your hollow victories are meaningless! Compare to everything you had faced so far, you have no idea of the true horrors that await you."

Vashj: "What the?!"

At that very moment; two vast armies arrived within both sides of Mephistroth's forces. The first army is none other than the Fel Horde led by Warchief Kargath Bladefist himself who has finally shown up once again after all these time. The other army is yet another vast force of demons that is being led by a strong and powerful Pit Lord called Azgoth. Illidan and Lady Vashj are heavily outnumbered and surrounded by the combined armies of the demons and fel orcs led by Kargath, Azgoth, and Mephistroth. The demons and fel orcs are dressed for war as they stand upon a short distance outside the naga base. Upon openly showing themselves to Illidan and his naga; Kargath and Azgoth began to reveal everything about their true intentions and their next plan for Outland.

Kargath: "Greetings to you, elf demon! And to you, snake witch! It has been quite a while…"

Vashj: "Kargath Bladefist! So you finally decided to come out at last…"

Illidan: "I had been wondering all these time when you would showed up again, you coward! It's about time, I must say. It seems that you made some new friends that are all just as vile as you!"

Azgoth: "I am the mighty and powerful, Azgoth! And I have come here to avenge and uphold the legacy of Magtheridon! Just as what you did to him before, Stormrage; I shall overthrow you and I will become the new Lord of Outland! I shall take over these lands in the name of Mannoroth!"

Illidan: "You might as well try and fail, Pit Lord! You may be strong, but I shall destroy you just as how I did to Magtheridon! You shall not defeat me, nor shall you take over Outland, demon!"

Azgoth: "Fool! Your reign is about to come to an end, elf! Much of your minions fell before me, including your best lieutenants! It was I who led the charge upon conquering Zangarmarsh! It was I who defeated that vile serpent warlord in the swamps! The might of Azgoth cannot be denied!"

Mephistroth: "Though your victories have been quite impressive; it was all, but a necessary price to pay for us to gain something more. And I should thank you on all of these, serpent witch. You see, your magical fountain pool provided us the way to achieve our goal, and assure our victory!"

Vashj: "What are you talking about, demon?! You may have succeeded in ruining my new home, and corrupting my rightful source of power, but Lord Illidan had already permanently closed the dimensional gateway in here! Apparently, your little reinforcing operations have been thwarted!"

Kargath: "Unfortunately for you, there are so much more to it than what you all have thought!"

Mephistroth: "Though we did it use the dimensional gateway to call upon reinforcements; we did have some other ways. The magical waters of the fountain gave us the powers we need to bolster our forces! Beyond all of those you faced, more have come on Outland. Countless demons came from the nether, as we brought them through our own powers! The gate which you sealed served as an initial test for us to fulfill our other goal, and that was to reopen the known Dark Portal that connects this shattered world to Azeroth, and is still standing to the far south of this very region."

Kargath: "The Great Portal that was created by Gul'dan, and led my people in many wars against the humans from your own world. After all these years, the gate has been reopened once again!"

Illidan: "What?!"

Mephistroth: "We did not have the artifacts needed to reopen the gate, yet the mystical waters of the pool gave us the power and energies. Just like what we did to that gateway in which you have just closed, we used our powers upon reactivating the long dormant Dark Portal, and so we did."

Azgoth: "Do you understand now, demon hunter? We shall retake Outland for the Legion, and I will become its new ruler! Afterwards, we shall invade Azeroth once again, and finish what Lord Archimonde had started! The Legion shall return soon to your world through the Dark Portal!"

Illidan: "Never! I will not let you foul wretched demons succeed in your vile schemes! You shall not take over Outland, and you shall not step foot into Azeroth again! Not while I draw breath!"

Azgoth: "Which will not take any longer, for that matter. Destroy them all, my warriors!"

Vashj: "Lord Illidan, we are no match for a force this vast! We are sure to be overrun in here!"

Illidan: "I shall make our escape! Vashj, hold them off while I channel us a portal out of here!"

The vast combined armies of the demons and fel orcs fiercely charge against the naga base camp. Illidan, who had just regained a bit of his strength after having another crippling seizure, starts to channel a shimmering portal leading directly to the Black Citadel. Lady Vashj and her naga army defensively battle against the invading demons and fel orcs. The naga camp is built with heavily fortified defenses. However, the vast army of the demons and fel orcs are effectively able to push on their massive attack. Many warriors from both opposing sides are falling, yet the scales of the war battle are in the favor to the greatly outnumbering forces of the Legion. Just then, at a perfect timing; Illidan finishes his shimmering portal, and calls for retreat on his standing naga warriors.

Illidan: "The portal is completed, Vashj! Quickly, my warriors! Fall back to the portal! Now!"

In the confusion of the heavy assault of the demons and fel orcs upon the naga camp; Illidan and Lady Vashj manage to slip through the portal, along with many of their standing warriors. Some naga troops bravely remain behind as covers for the escape of Illidan and Lady Vashj through the portal. Leaving his base in the Hellfire Peninsula to be destroyed; Illidan closes the portal behind as the last group of naga cross through. Upon finally returning to the safety of the Black Citadel; Illidan and Lady Vashj are quickly met and greeted by Prince Kael'thas and Akama, which have been overseeing the security and defenses of the Black Citadel. Having been reunited once again after quite a while; Illidan and his lieutenants discuss everything that have happened with regards to their war against the forces of the Legion in Outland, and make their plans for their next move.