From https://www.bungie.net/en/Forum/Post/127153531/0/0/1 Act 3: Sha'aran [spoiler] 3.1: After you've defeated Tajal the Bridgekeeper, activate the two control panels to extend a wide bridge to the other side of the canyon. Cross to the other side and ascend a flight of stairs. Fight your way through patches of Cabal to reach Sha'arans coliseum. This part is honestly quite easy. After fighting some more Cabal, ascend another small flight of stairs to reach the doors to Sha'aran's coliseum. The doors will only open once someone dances. Really. 100% honest. FINAL BOSS Information: [spoiler] Primus Sha'aran, the Corrupted: A giant Colossus. Of course. -Sha'aran Missile Pod Pack (used infrequently) -2x Cabal Machine Guns for 2x the Valus Ta'aurc Effects and Notifications (spoilers) 1- "Bane of Legends": Sha'aran is invincible. He cannot be hurt. 2- "Primus Sha'aran has been stunned": Sha'aran is paralyzed for fifteen seconds. He is unable to attack and is vulnerable to all Guardians- Bane of Legends is overridden for these 15 second. Pour on the damage, but remember that other Cabal will still try to overrun your fireteam. Remember to pack synths. 3- "___ is on a Relic Plate": Notifies when a Guardian is on one of four Relic Plates. 4- "All Relic Plates charged!": Notifies when each Relic Plate is occupied by a Super Charged Guardian. Occurs only when Charged Infusion is active. When all plates are charged, each of the 4 Guardians on a plate must Super Charge within one second of each other in order to stun Sha'aran--- communication is key for this timing. 5- "Charged Infusion": Allows Super Charges to activate the Relic Plates. 6- "Wielders Summoned" 7- "Sacrifice of Darkness": This usually doesn't occur... Maybe I'll change it later. For now just pretend this line of text doesn't exist. Arena: The arena is a 3 story circular coliseum- the 2nd and 3rd stories cannot be reached but many foes spawn up there. Phalanx too. Grenades are useful for taking these enemies out. Sha'aran is in the center of this arena, but doesn't necessarily stand still, and is surrounded by four slightly elevated glowing platforms, called Relic Plates. Relic: Relic Plates: Temporarily disable "Bane of Legends" and stun Sha'aran when four Guardians, one standing on each Plate, super within one second of each other. Wielders: Wielders are (yellow bar) Colossus... or Colossi? that spawn on each Relic Plate every other minute. They simply materialize from the base of each Relic Plate, composed of Darkness. They stay on the Relic Plates until they are killed, and once there are no Wielders, "Infusion" is triggered for thirty seconds. Also, no Wielders can spawn while Infusion is active, and if there is even one Wielder alive, none will spawn in. A team could intentionally leave a Wielder with a sliver of health, to activate Infusion when they please. Remember- Infusion allows Guardians to super on the Relic Plates to stun Sha'aran. It should take just over 5 stuns to kill Sha'aran, so this will be a lengthy fight. Sha'aran's Behavior: -Sprints at the first Guardian to get on a Relic Plate, firing both guns at him, until stunned or the Guardian leaves the plate (again- timing is everything- the 4 SCd Guardians should each get on their plate at the same time) -Rocket Barrage: After being stunned (NOT the first time, on Normal), Sha'aran will release a barrage of six homing rockets, which initially spiral upward a short ways before zooming towards Guardians with unmissable accuracy- literally. One rocket goes to each Guardian- if there are fewer than 6 Guardians, a Guardian(s) will be targeted by multiple. This tests each individual- a single weak link means another Guardian will probably end up dead due to multiple rockets coming at him. Other than Wards of Dawn- each of which can withstand two rockets (the 2nd will kill all inside), the only way to survive this barrage is to shoot the rockets down. Each rocket takes about 10 low rate of fire Auto Rifle hits to destroy, and rockets explode in a small radius when destroyed- so don't count on your Shotgun unless you want to get blown up. Basically, kill adds to super charge, kill the Wielders, have Guardians super simultaneously while on the Relic Plates, hit Sha'aran with heavy damage, shoot his tracking rockets down before they kill you/ your allies. [/spoiler]