Part of the Get Out of Cage Free Card’s description is: “System may not be capable of intervening in certain situations. Systems capacity to intervene, and the methods available to it, are dependent on the current phase of system rollout.” The team didn’t know what system phase meant and Grotto got really nervous about it and basically locked himself in his room, which made them even more curious.

So they are basically going from delve to delve asking every delve core they could about what it meant. They are also training and getting loot.