I remember getting the event shiny Tapu Koko back in August 2017 :) I trained it for online play, and then used during the final moments of Nintendo Network (managed to battle 90 minutes post shutdown) Hope we will be able to go online again :)
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Same, I also remember getting the torchic with it's own megastone in XY, Mega Blaziken was the coolest thing me and my bro ever seen. If they bring back online, they should make a way to have all the online events obtainable