In order to receive an exotic sword, you must complete these steps: 1) Have a legendary sword of 280+ in your possession 2) At that point, you will get a quest to kill a certain number of majors. You must also kill a certain number of guardians in the crucible. 3) Then, you'll receive a quest to get the rare materials needed. - Solar Sword Materials: Helium Filaments (Found on the Moon) - Arc Sword Materials: Spinmetal (Found on Earth) - Void Sword Materials: Relic Iron (Found on Mars) P.S. There is a 10% drop rate on rare materials. Make sure to get kills with the ability of the sword you desire! (Special melee, grenade, super) 4) After you get kills and materials, you will turn this in to Lord Shaxx. 5) Once you've turned it in to Lord Shaxx you will have to wait until Armsday (Wednesday.) Once that day arrives, you will do a special version of the "Sunless Cell" mission. 6) Once you get to Allah-kul at the end of the mission, you will fight against Thrall and Wardens in the process. There are three Wardens, one to represent each element: Solar, Arc, and Void. You must keep the warden representing you desired element of your sword alive. For example, if I wanted the Dark-Drinker I would have to keep the Void Warden alive until it's just your fireteam against the Warden and Allah-kul. 7) [b]Make sure to get Allah-kul's health down so low that you'd be able to kill him in 30 seconds or less!!! [/b] Know why? 'Cause you must kill your desired Warden BEFORE Allah-kul. Once you kill the Warden, a 30 second timer will start. Within those 30 seconds, you must kill Allah-kul. 8) Once you've completed the mission, turn it in to Lord Shaxx at the Tower. 9) The mission will then end, and you should receive your desired exotic sword!