Stormonu
NeoGrognard
Hmmm....that does make me ponder. Perhaps for casters it would be interesting to make just a ranged spell attack. If it misses, its assumed it was just a cantrip and no major loss. If it hits, the caster can choose to do cantrip damage or burn a spell slot for a 1st+ spell effect.It is a place for it, but there are points where that design isn't ideal and interrupting that flow or changing it so decisions are made after results are known are also good design.
Could maybe do it for save effects, but I'd be very wary of doing so - would probably lower spell slots in some way since you're ensuring your spells never fail.