Elerium, otherwise known as element 115, is the energy source for all alien technologies.ADVENT Turret: Sell those babies after research is done.ADVENT Shieldbearer: Sell the bastards.ADVENT Officer: Sell them all Instant:10/20.Each weapon produces two fragments when the alien is killed, therefore aliens that are equipped with both a grenade and a firearm, such as Mutons, can yield up to four fragments apiece. Weapon Fragments can be obtained from any alien that carries a weapon. A landed supply ship can get you around 300 alloy. How do you get alloy in XCOM Enemy Unknown?Īny mission in which you fight cyberdiscs or sectopods will give you alloys (since they’re machines), but UFO’s are by far the best. In XCOM 2: War of the Chosen Elerium Cores can be used to revitalize soldiers in the upgraded Infirmary.You can also obtain Elerium Cores as a reward for certain kinds of missions, such as landed UFOs or Supply Raids.The main source of Elerium Cores is loot drops.Black market – The black market will often offer you alloys in exchange for intel.Cleaning rooms – The rooms on the lower levels of the Avenger will reward you with some units of alloy when cleaned out.