[4][5] Immortals previously competed in other esports titles, including Apex Legends, Arena of Valor, Clash Royale, Counter-Strike: Global Offensive, Dota 2, Overwatch, Rainbow Six Siege, Super Smash Bros. and Vainglory.

Investors for the group include Anschutz Entertainment Group, Peter Levin, the president of Lionsgate Interactive Venture and Games, who co-founded Nerdist; Allen Debevoise, former chairman at Machinima.com; Steve Kaplan, a co-owner of the NBA's Memphis Grizzlies; serial entrepreneur Brian Lee, entertainment industry venture capitalists Machine Shop Ventures; Neil Leibman, a co-owner of MLB's Texas Rangers, and others.

[6] On October 7, 2015, it was announced that a new esports organization called Immortals had acquired Team 8's spot in the North American League of Legends Championship Series (NA LCS).

On December 7, 2016, Joshua "Dardoch" Hartnett joined as Immortals' starting jungler, signing a three-year contract.

[10] Top laner Lee "Flame" Ho-jong and bot laner Liyu "Cody Sun" Sun joined on December 9, 2016,[11] while support Kim "Olleh" Joo-sung was first reported as joining the team on December 12, 2016,[12] with a press release from Immortals officially announcing his signing on the following day.

[18] The former coach of SK Gaming, Wilton "zews" Prado, replaced Gustavo "SHOOWTiME" Gonçalves on July 22, 2016.

[22] After a disappointing showing at ESL Pro League Season 4 Finals in Brazil, Immortals replaced Wilton "zews" Prado with former teammate of boltz, Lucas "steel" Lopes.

The most recent roster change involving the team was when João "felps" Vasconcellos was traded to SK Gaming in exchange for Lincoln "fnx" Lau.

[32][33] The team revealed their starting roster over a series of Twitter posts from October 30 to November 2, consisting of four DPS, four tanks, and three supports.