Undrave
Legend
Don't need spell slots to cast rituals.
Oh snap! I hadn't thought of that... Okay so what if you're too low level to know that ritual? Only level 2 spells and lower?
I don't know! It's YOUR experiment.
Seriously, though, maybe wanting to see how well a more "at will" party would do? How much resource-dependent parties have issues when rest becomes an issue.
IME too many 5E games are structured so that a "rest" can be done in most times when needed.
Good point! Yeah. I wouldn't run an entire campaign like that, but an adventure that really pushes the party to their limit with a strict deadline would probably be memorable to the players.