I'd like it if there was an end-game mode where I could start a run with 3 disks, spells, and artifacts of my choice while using the outfit abilities from the main climb. the rest of your spells, disks, and items are obtained randomly as normal. Of course, you would only have access to the items you've unlocked through gameplay.

It's mainly for those times I just want to see if a build works or just want to test something.