How do you get the Infernal Amumu Icon?
It was sold in the League of Legends store. Riot's description in the client reads: “This icon was released in the store for purchase during 2018.”
Is the Infernal Amumu Icon still available?
Probably not. Riot tied the Infernal Amumu Icon to 2018 (store purchase), and it does not normally bring back past event rewards or bundles.
