How do you get the Sentinel Vayne Icon?
It was released during a limited-time event. Riot's description in the client reads: “This icon was acquired during the 2021 Sentinels of Light event.”
Is the Sentinel Vayne Icon still available?
No. Riot tied the Sentinel Vayne Icon to 2021 (limited-time event), and it does not normally bring back past event rewards or bundles.
