With the plans now set, as well as having Akama and his Draenei brethren join the next upcoming battle against the Lich King and the Scourge; Illidan first makes his way to the prison cells of the remaining demons of Magtheridon on Outland. Knowing that the demons will not submit to him, let alone obey the orders of a demon hunter; Illidan intends on taming the demons by force through the strongest living demon amongst the prison cells, Arzeth the Merciless, a powerful doom guard next to the now deceased Master of Pain. Walking upon the middle of the dungeon cells; the demon prisoners locked up within the strongly magical sealed cells looked upon Illidan as he walks down to the center of the dungeons. Illidan casts a magical spell on the cage cell of Arzeth the Merciless, unlocking the doors and releasing the demon. Seemingly surprised by Illidan's actions, the demon hunter begins to speak aloud as he tends to bargain with Arzeth and the other imprisoned demons.
Illidan: "I shall be keeping this short and straight for you, demons. I have shown my strength and power before you when I defeated your former master at the Black Citadel. I decided to spare each of your wretched lives in exchange for your allegiances, but you all foolishly refused. Now, I ask you once again, demons. Serve me, and you will all be freed from this prison. Fight for me, and you shall be rewarded… or would you all rather rot to death in these dungeons? What say you?"
Arzeth: "Do you think you can persuade us with your little bargain, elf demon hunter?! You think this petty dungeon fortress could hold us forever?! Lord Magtheridon may have been defeated, but we are the warriors of the Burning Legion! These lands are ours! Outland rightfully belongs to the Legion! You and your lapdogs deserve to burn by the flames, Illidan! Your petty bargains will not work on us, demon hunter! You are no ruler, nor a commander to us! You're just an arrogant fool!"
With Arzeth's statements against Illidan; the other imprisoned demons have begun laughing as an insult and mockery against Illidan. At that moment; Illidan suddenly bursts in anger, and viciously attack Arzeth. Despite the grievous injury upon his chest from the Frostmourne; Illidan is still able to move and battle effectively. Arzeth attempted to fight back against Illidan, but the demon stands no chance against the enraged demon hunter. Illidan killed Arzeth in just a short yet vicious battle. Illidan wants to show the other demon prisoners of what it means on mocking his own powers and superiority. The demon hunter channels his mana energies within, and casts a magical fire spell to burn the corpse of the dead doom guard into ashes. The once proud and strong Arzeth the Merciless is now nothing more, but mere remains of burnt ashes. Standing silently in pure rage, Illidan looks upon all the other imprisoned demons and sends his own clear message to them about defying him.
Illidan: "Is there no one else?!... Is there no one else?!"
After a few minutes of silence; the imprisoned demons within the cells one-by-one began bowing their heads, showing a sign of finally submitting themselves to the new Lord of Outland. Illidan looks upon the enslaved demon prisoners who are now bowing their heads. Out of respect, or out of fear; Illidan has taken upon himself as a sign of the demons swearing their allegiances to him. With Akama witnessing everything that have happened between Illidan and the demon prisoners; Akama and his other fellow draenei jailors began to remove the magical seals for the prison cells.
Illidan: "Hear me, demons! I rule Outland now! I reign supreme! Betray me, defy me, and you will meet your demise by my blades! Now… I command you all to fight! Fight for your new master!"
Demon Overlord: We… fight!
Upon unsealing the magical prison cells; the demons made their way out to the open courtyard of the fortress, whilst being closely watch by a group of naga warriors that Illidan brought with him to the dungeon fortress. With the demons now freed and tamed under his command; Illidan now prepares to head into the other area of the dungeon fortress where the fel orcs are held, separated from the prison cells of the demons. Being accompanied once more by Akama and the rest of the draenei jailors; Illidan will now confront the fel orcs and also have them all submit to his own will.
Amongst the jailed fel orcs within the dungeon fortress is the legendary chieftain of the Shattered Hand Clan and the official Warchief of the fel orcish clans, Kargath Bladefist, who tried to resist against Illidan and his forces even after the fall of Magtheridon. Kargath Bladefist is amongst the well-known veteran orc chieftains that battled the Alliance Expedition. Kargath, along with most of the surviving orc clans in Outland, have been permanently mutated into fel orcs over the years passed ever since they drank the blood of a powerful demon for the second time in their lives, the blood of Magtheridon. With the defeat of Magtheridon and the downfall of the Burning Legion's hold over Outland; the fel orcs not only lost quite a lot of their forces, but also their own freedom. For now, Illidan shall attempt of having these fel orcs swear their allegiance to him by any means.
Just as he did before with the demons; Illidan walks into the center of the prison cell hall with the fel orcs staring at him from inside the magically sealed doors. Among the prison cages is the cell of the Fel Horde Warchief himself, Kargath Bladefist. Along with Kargath are three of his fellow leaders of the fel orcs; Tagar Spinebreaker, the known veteran chieftain of the Bonechewer Clan, Keli'dan the Breaker, a powerful fel orcish warlock who had become the chieftain of the remaining fel orcs of the Shadowmoon Clan since after the explosion of Draenor, and Nek'rosh Skullcrusher, son of the infamous Nekros Skullcrusher, who was able to return on Draenor after the Second War, and is now the chieftain of the surviving Dragonmaw fel orcs on Outland as a strong fel orc warrior.
Illidan: "I have a proposition for all of you. I will be granting your freedom out from this prison, with only one small thing in return; your allegiance. Serve me as your new master. Fight for me."
Kargath: "You speak to no slaves, elf demon. We here are warriors, and ruthless conquerors! We own Outland. We serve only those we deem to be worthy, those of great strength and powers. The Burning Legion have given us true power long ago, and with it, we had pledged ourselves to them."
Illidan: "And I have destroyed your demon masters at the Black Citadel before your very eyes…"
Kargath: "Perhaps, you have… but you can make no real offer that will make us serve you. I am the Warchief of the Fel Horde, and despite having us imprisoned here, we refuse to serve as your servants, elf demon. Never shall my warriors and I serve anyone blindly without anything for us."
Illidan: "Nothing to offer, you say? Tell me, Bladefist. Do you wish to fight upon a glorious bloody war once more? Do you wish to conquer enemies that are beyond anything you have fought before? Do you seek vengeance for the destruction of this world, and the near extinction of your brethren?"
Kargath: "Hmm… I am listening…"
Illidan told Kargath and all the other fel orcs everything about Ner'zhul who became the Lich King that commands the armies of the undead on Azeroth. Being remembered as the former chieftain of the Shadowmoon Clan, and the former Warchief of the Horde of Draenor; Ner'zhul is responsible for the catastrophic destruction of the planet, and turning it into the Outland that it is today. Kargath and the other veteran fel orc chieftains recalled how Ner'zhul betrayed, and abandoned them into a certain doom for the sake of his own pride and selfish plans. Now being called as the creator and the commander of the Undead Scourge; Kargath and the other fel orc chieftains eventually agreed to become part of Illidan's forces. Reluctantly swearing their allegiance upon Illidan; the Fel Horde made it as a decision under Kargath's consideration, for the sake of getting vengeance on Ner'zhul. With the fel orcs now joining Illidan's forces; the fel orcs have also been freed from their prisons. Illidan has succeeded in the phase one of his plan on recruiting the demons and fel orcs to his side.
Tagar: "The Bonechewer fears no living, nor dead! We shall destroy Ner'zhul and his minions!"
Keli'dan: "I cannot wait to see our former master and clan chieftain again after all these years."
Kargath: "I shall make this clear, Illidan. I do not trust you, nor do we serve you willingly, but if it means to get our revenge on Ner'zhul, then we shall crush this Scourge of his and destroy him!"
Illidan: "You will all have your vengeance when you face Ner'zhul's armies in a glorious battle!"
Having been freed from the dungeon fortress over the Shadowmoon ruins; the demons and fel orcs altogether have been given consideration to establish a new stronghold of their own on the Hellfire Peninsula, just as how the naga and the blood elves established each of their own major strongholds on Outland. Considering it as their new home, Lady Vashj and her naga armies have created their own capital over a small tranquil swampland region on Outland that somehow was able to survive after the destruction of the planet. The small forested swamp region is called Zangarmarsh, located to the far northwest of Hellfire Peninsula, and bordered by the Mountains of Flame upon its sides. Akama and his Draenei brethren used to have a village within Zangarmarsh, and it was their former hideout in the long years that they battled the demons and fel orcs. Zangarmarsh is also the home of some of the only surviving exotic varieties of the native wildlife on Draenor such as spore bats, fungal giants, and the doom beasts. Within the stronghold of the naga on Zangarmarsh; Lady Vashj used the vial of eternity given to her by Illidan upon creating a small fountain of magical energies to serve as a powerful source of magic and power for her and her armies, just like how the Sunwell empowered the high elves for many millennia before its corruption and destruction of Quel'thalas.
The naga forces have also established a number of large camps of their own located on the outskirts of the Black Citadel. The multiple naga encampments were built around the areas, near to most of the sites of the now permanently closed and ruined dimensional gateways of Ner'zhul on Outland. Primarily serving as strong additional defenses for the Black Citadel from the outside; each of the naga camps are all established with such strong fortifications. On the other hand; Prince Kael'thas and his blood elf brethren have constructed their own stronghold within the Black Citadel, strongly entrenching themselves within the compounds of the fortress itself. In addition to the major naga and blood elven capitals; there are few scattered blood elven outposts that have been built near the borders of Hellfire Peninsula, which serve as distant sentry points for Illidan and his armies. Other than the few small standing draenei villages in Outland; most of the draenei forces have also settled in the Black Citadel serving as Illidan's elite guards, as well as within the dungeon stronghold over the Shadowmoon ruins where the recently freed demons and fel orcs used to have been imprisoned.
The demons and fel orcs have made their own new stronghold to the far southern region of Outland, in the middle of the Hellfire Peninsula. Kargath Bladefist assembled all of the fel orc clans, as well as the remaining demons of Magtheridon into his own large army that is now ready to do bloodshed and conquest. With all his armies now settled; Illidan prepares the naga, blood elves, draenei, and the demons and fel orcs to set themselves for war upon their planned second invasion of Northrend. As for Illidan; the demon hunter prepares himself on facing Arthas and the Scourge in battle once more. The grievous injury on Illidan's chest from the slash of Frostmourne has somehow affected his own strength, and the dark magical enchantments of the runeblade somehow also affected his own powers. Illidan feels that his own strength and magic are somewhat slowly deteriorating from the injury upon his chest as he makes his presumption that defeating the Lich King and destroying the Frostmourne may be the only way for him to get rid of the runeblade's dark magical curse that is now slowly weakening his body, and for him to restore his own full strength and powers back.