How do you get the Santa Baron 2017 Icon?
It came from sending or receiving a gift. Riot's description in the client reads: “Acquired by having another player gift it to you during the 2017 Snowdown event!.”
Is the Santa Baron 2017 Icon still available?
No. Riot tied the Santa Baron 2017 Icon to 2017 (gift), and it does not normally bring back past event rewards or bundles.
