We need some mechanic to allow players to gain access to Mementoes that they wouldn’t normally have; otherwise, it’s quite likely that a significant proportion of players will end up randomly locked out from a significant proportion of gameplay. This seems like an interesting (perhaps too interesting? but I’d rather err on the side of chaos than boredom) way to do it.

The daily-action restriction is intended to rarely come up; I just added it as a precaution against infinite loop scams that might potentially arise in the future, as this is the sort of mechanic that’s inherently likely to cause one.