inner shale
A page with information on past runs. The current logbook is cute and flavorful, but having an actual statistics page where you can see your card picks, charms, etc would be awesome.
Maybe which bosses you faced. Possibly show the map and the route you took.
Ideally you could also add in a score for the run, like is computed for the daily voyage. And if the rng-seed suggestion goes through you could get the seed for a run from here too.
sick pewter
Would be nice to be able to star/flag runs in this list too, or even add notes (e.g. "The one where I got the 6x combo.")
inner shale
List of past runs/Run tracker
scenic void
Most definitely would love to be able to look back at winning teams and decks.
oblique mica
even just a sort of "hall of legends" a la the current final boss viewport would be really nice to have indexed