How do you get the 2018 Worlds KaBuM! e-Sports Icon?
It came in a bundle. Riot's description in the client reads: “This icon was part of a bundle exclusive for 2018 Worlds event”
Is the 2018 Worlds KaBuM! e-Sports Icon still available?
Probably not. Riot tied the 2018 Worlds KaBuM! e-Sports Icon to 2018 (bundle), and it does not normally bring back past event rewards or bundles.
