How do you get the Prestige Edition Mythmaker Sivir Icon?
It came with a Prestige skin. Riot's description in the client reads: “Acquired by earning Prestige Mythmaker Sivir, entitles Prestige border.”
Is the Prestige Edition Mythmaker Sivir Icon still available?
Only with its Prestige skin. The Prestige Edition Mythmaker Sivir Icon comes with that skin, so owning the skin gets you the icon.
