How do you get the Prestige Season 2019 Icon?
It was a mission or event reward. Riot's description in the client reads: “This icon was acquired by completing missions at the start of Season 9.”
Is the Prestige Season 2019 Icon still available?
No. Riot tied the Prestige Season 2019 Icon to 2019 (mission reward), and it does not normally bring back past event rewards or bundles.
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