This will probably get buried, but Diablo 2's Switch servers have been down for multiple days now without a word from Blizzard. There is currently no way to access Online Characters at
Amazon.com: DIABLO III: Eternal Collection - [Nintendo Switch] : Video Games
Diablo 3: Ultimate Evil Edition hits 58GB in EU, but don't worry
Diablo 3 coming to Nintendo Switch with Zelda-themed items this November - CNET
Diablo 2 Resurrected (SWITCH) cheap - Price of $12.07
Diablo 3 coming to Nintendo Switch with Zelda-themed items this November - CNET