How do you get the Season 2023 - Split 2 - Flex Master Icon?
It was a ranked reward. Riot's description in the client reads: “This icon was earned by finishing Master in Flex Queue in Season 2023.”
Is the Season 2023 - Split 2 - Flex Master Icon still available?
No. The Season 2023 - Split 2 - Flex Master Icon was a ranked reward. To earn it, you had to reach Master in Flex during Season 13 (2023). Riot does not hand out past ranked rewards again, so you cannot earn this icon anymore.
Season 2023 - Split 2 - Flex Master Icon is one of the rarest LoL summoner icons.
Released in 2023

Season 2023 - Split 2 - Flex Diamond Icon
Released in 2023

Season 2023 - Split 2 - Flex Grandmaster Icon
Released in 2023

Season 2023 - Split 2 - Flex Platinum Icon
Released in 2023

Season 2023 - Split 2 - Flex Challenger Icon
Released in 2023

Season 2023 - Split 2 - Flex Gold Icon
Released in 2023

Winterblessed 2023 Crest Icon
Released in 2023
