We do not know who is IGL.
Wait for the official announcement or for SCARZ to make it to the main stage and speak during the winner's interview.

I want come back Tixx!!!
Although he was a smokescreen user, he had great combat prowess and was one of the few with excellent IGl abilities.

SZ 2-0 MRG
However, I am worried because Yoshii and Yotaa are sick.