How do you get the LEC G2 Esports?
Riot has not published how the LEC G2 Esports is obtained. The client shows it without a description.
Is the LEC G2 Esports still available?
Riot does not list the LEC G2 Esports as a legacy icon.

LEC G2 Esports is a 2019 League of Legends summoner icon. It first appeared in patch 9.9, released on May 1, 2019. Its icon ID is 4153.
Riot has not published how the LEC G2 Esports is obtained. The client shows it without a description.
Riot does not list the LEC G2 Esports as a legacy icon.