Nintendo Wifi apocalypse – What should I do before The End? :(

[Ben]

Is there anything I need to do in the Pokémon games before it will be no longer possible?

I woke up my sleeping Pokémon; I suggest you do too.

I/You can get BP from battle subway offline by facing the non-Wi-Fi trains.

Downloading the battle video of a Starly beating a Luxray isn't that consequential.

Mystery gifts have long been over.

What for the Pokémon DS games should I really do or do as much as possible before the server shut down?

example: Get the Rotom Key

Also here's the official link: https://www.nintendo.com/whatsnew/detail/vyWpoM6CBIe6FjW8NIY7bvzOrgBURhzw