How do you get the Dragonmancer Fiora Border Icon?
It came in a bundle. Riot's description in the client reads: “An icon that entitles the border for this champion.”
Is the Dragonmancer Fiora Border Icon still available?
Probably not. Riot tied the Dragonmancer Fiora Border Icon to 2023 (bundle), and it does not normally bring back past event rewards or bundles.
