In Shadowdark, casters know a handful of spells that they can cast. Rather than having to prepare spells and/or expend spell slots, Shadowdark casters make a magic roll (like a skill check) each time they cast a spell. If they fail the roll, they no longer have access to that specific spell until they manage a (long) rest.
Is this a viable method in standard 5E, do you think? Is it desirable? Is it something you could extend to other class abilities by non casters? What would it mean for cantrips and other non-resource at-will abilities?
Is this a viable method in standard 5E, do you think? Is it desirable? Is it something you could extend to other class abilities by non casters? What would it mean for cantrips and other non-resource at-will abilities?