Legion raid bosses defeated

Defeat these bosses (17)

Lines the game data counts toward this achievement.

Where: The Nighthold, The Emerald Nightmare

1. High Botanist Tel'arnFrom his youth, the nightborne Tel'arn was fascinated by plant life: the resilience and adaptability of weeds, the ability of simple grass to harness the power of the sun, the way a tree may be divided into two, or two branches grafted into one. Aided by the energies of the Nightwell, he has transformed himself to the point that he is scarely recognizable as a nightborne elf. He now considers himself something far, far greater.
2. CenariusThe demigod Cenarius is the father of druidism in Azeroth, and one of Azeroth's oldest and most powerful protectors. His disturbing slumber within the groves of Val'sharah was the first sign of the depth of the growing threat from within the Nightmare. That dark power now has complete hold over him, and he may lie beyond hope of redemption.
3. Elerethe RenferalElerethe, once a mighty druid and adept shapeshifter, was led down a dark path by the belief that she was betrayed by her closest allies. Her consciousness now resides in the nightmare, damning her to an existence of fear, confusion, and hatred.
4. Il'gynoth, Heart of CorruptionLodged in the hollows of a now-decrepit world tree, Il'gynoth is a manifestation of the horrors that lie at the heart of the Nightmare. It is a mass of corruption - a thing that should not be. Its tendrils seep through the ground, emerging in countless horrifying eyestalks and limbs.
5. Grand Magistrix ElisandeElisande once distinguished herself by resisting the Legion. She and her highborne followers broke away from Queen Azshara and the dark path she was taking, harnessing the power of the Eye of Aman'thul to create the Nightwell to protect Suramar from the Sundering. But over ten thousand years later, the Legion's arrival offered her no such recourse. She has cast her lot with the demons, hoping to once again use the power of the Nightwell - albeit this time in a very different sense - to save her people.
6. Spellblade AlurielAluriel always had an affinity for magic. She rose through the ranks of the Nightguard effortlessly, having a natural talent with the sword. But no matter how strong she became, she wanted more. She studied with the mages at the University of Suramar, spending her days in combat training and her evenings in the artificery. She forged her weapons and armor in the Nightwell, weaving magic spells into the precious metals. She is the first Spellblade, adept in the schools of Fire, Frost and Arcane.
7. TrilliaxTrilliax, once proud servant to the nightborne aristocracy, has been discarded and left to slowly deteriorate among other surplus constructs. While an unwavering will to carry out its tasks remains, the passage of time has splintered this construct's personality matrix. It now unpredictably switches from one mode to the next, ranging from doting caretaker to homicidal sterilizer, craving recognition and validation from a master that no longer exists.
8. Gul'danThe chain of events set in motion when Garrosh escaped to Draenor has continued, unbroken for all its twists and turns, leading to this very moment. Thwarted in Draenor, Gul'dan now stands on the precipice of achieving ultimate victory on behalf of his Legion masters. Standing atop the Nighthold, as the vortex of fel energy swirls in the skies overhead, the outcast orc warlock awaits his destiny.
9. Chronomatic AnomalyThe cavern at the base of the Nightwell is a maelstrom of raw energy, as the power to fuel an entire civilization courses from the earth. Born from this chaotic flux, the Chronomatic Anomaly is an embodiment of the power of the Eye of Aman'thul. As it lashes out with energy attacks, the bursts of energy warp the very flow of time.
10. XaviusOnce a powerful mage, and a councilor to Queen Azshara, Xavius forged a pact with Sargeras to enable the Legion's first invasion of Azeroth. Cursed and tormented in the wake of that defeat, Xavius plots vengeance against the world from within the Rift of Aln. Those who venture into the Nightmare will face the full extent of his power, and his true form - a grotesque and distended monstrosity.
11. Star Augur EtraeusThe nightborne astromancer Etraeus has devoted long years of research to scouring the skies of Azeroth, seeking answers to the great mysteries of the universe. His scrying has shown him worlds beyond our ken, and the power of the Nightwell allows him to draw upon the essence of those worlds to amplify his own powers.
12. TichondriusThe dreadlord Tichondrius, once leader of the nathrezim, was once slain by the newly-awakened power of none other than Illidan Stormrage. Reconstituted in the Twisting Nether, Tichondrius returns to watch over Gul'dan on behalf of the Legion, ensuring that the orc warlock does not once again fail his masters.
13. Dragons of NightmareThe Emerald Dream was entrusted to Ysera for safekeeping, and the mightiest of her green dragon brood were assigned to stand watch over four portals that connected directly to Azeroth. But even before the Cataclysm, these dragons began to show signs of corruption. Now, the path to the Nightmare's core runs through the dragons' lair.
14. NythendraNythendra was once a member of the Green Dragonflight charged with guarding the world tree, Shaladrassil. When Xavius' corruption of the Nightmare consumed Shaladrassil, it consumed the sleeping guardian as well. Nythendra is now nothing more than a skeletal version of herself, swarming in pestilence, ready to devour anyone or anything foolish enough to enter her lair.
15. SkorpyronDeep within the foundations of the Nighthold, beneath the sea, lie long-forgotten vaults that give access to the Nightwell itself. This monstrous armored scorpid has made its home in one of these vaults. Infused with the power of the Nightwell, and surrounded by a teeming brood, Skorpyron presents a serious complication to an otherwise-promising back entry to the Nighthold.
16. KrosusThis colossal doom lord, one of the largest and mightiest creatures in the armies of the Legion, was defeated at the Broken Shore through the combined might of the greatest heroes of the Horde and the Alliance. Having recovered from his wounds, Krosus emerges from the bay between the Nighthold and the Tomb of Sargeras to crush any who would oppose the Legion.
17. UrsocUrsoc is one of the Wild Gods. Patron of the furbolg, and closely linked to the druidic power of shapeshifting, the ancient great bear has long been a protector of Azeroth. But as Ursoc slumbered at his shrine in the Grizzly Hills, the world around him was plunged into corruption, and he awoke to torment and nightmare, consuming and twisting his being.