The new roster placed third in the regular season of the 2016 LJL Spring Split and second in playoffs after losing 0–3 to longtime rivals DetonatioN FocusMe (DFM) in the grand finals.

Rampage managed to place first in both the regular season and playoffs of the 2016 LJL Summer Split after defeating DFM 3–2 in a close series in the grand finals.

[1] Ramune and YutoriMoyasi remained on the team after the rebranding, while top laner Shirou "Paz" Sasaki, jungler Jang "Once" Se-yeong, and support Yang "Gaeng" Gwang-yu joined to complete PENTAGRAM's inaugural roster.

On 5 February 2018, Riot Games Japan announced that PENTAGRAM would be penalized for withholding Dara and Tussle's residency cards.

[5][6] In December 2017, the team's management allegedly confiscated the residence cards of their two Korean players, Jeon "Dara" Jeong-hoon and Lee "Tussle" Moon-yong, putting them at risk of a hefty fine and imprisonment.

"[7] Aotaka's actions outraged the Japanese League of Legends community, and a subsequent investigation by Riot Games Japan determined that the incident had indeed taken place.

"[3][7] PENTAGRAM responded shortly after with a statement acknowledging their malpractice of confiscating Dara and Tussle's residence cards but denying that they had threatened the players.

[9] Kim "34" Dong-hun From June to November 2018, PENTAGRAM sponsored Japanese players poly and kr10, who participated in the first season of the PUBG Japan Series.