My scramble challenge is coming along pretty well now. I'm currently situated at the Milk Cafe between Solaceon and Veilstone.
Since leaving Eterna, I made my way to Hearthome and then Solaceon, with a few things happening of consequence. I made two treks from Solaceon to Jubilife (meaning spanning almost the region's radius and going through Mt. Coronet). One time I went to the GTS to request a Misdreavus trade for my team, which somebody did in a matter of hours. Then when I got back to Solaceon, I realised I hadn't received the Memo Pad app for my Poketch, which would've been helpful for the Ruins maze. After leaving Solaceon, I began training my new Japanese Misdreavus, and while battling a trainer, my Budew finally evolved into Roselia! And that's where i've left it for today.
Still can't find that elusive Munchlax though...
Roselia (Blossom) - Lv25
Shellos (Shelldon) - Lv23
Vespiquen (Honeybee) - Lv24
Buneary (Thumper) - Lv24
Misdreavus (Stuck with random Japanese name lol) - Lv22