Raise Gaming proved to be a domestic powerhouse during the 2017 LMS Summer Split, placing 2nd (after losing a tiebreaker match for 1st against Flash Wolves) in their inaugural season with a 10–4 record.

However, the team lost 1–3 to ahq e-Sports Club in the first round of playoffs and were forced to play in the LMS Regional Finals in order to qualify for that year's World Championship.

On 15 September 2017, Raise Gaming was purchased by Hong Kong business company Emperor Entertainment Group and renamed to G-Rex.

Junglers Anson "Empt2y" Leung Tsz Ho and Wang "baybay" You-chun joined the team to complete the starting roster for the 2018 LMS Spring Split.

Jungler Wu "Epic" Chun-hin, support Yin "Eason" Yi-shen, and bot laners Sung "Atlen" Ya-lun and Chiu "Bruce" Chih-chun also joined the team on the same day to complete the roster.

[6] After a weak start to the 2019 LMS Spring Split, Empt2y and Candy rejoined the roster in the latter half of the season, but failed to improve the team enough to make playoffs.

In the following offseason, junglers Epic and Raise left the team and were replaced by LMS veterans Huang "Gemini" Chu-hsuan and Xue "Mountain" Zhao-hong, while Empt2y resumed his duties as assistant coach.