jgsugden
Legend
Would it? Would a spell that does ~22 points of damage spontaneously ruin the game? Because cantrips currently do this... would the ability to go invisible an unlimited number of times ruin the game? Because we have a cloak that does that ... and wizards already get unlimited castings of a few spells....Danger, Will Robinson!
Casters already have more than enough going for them at high levels, giving them this [unlimited castings of 1st, 2nd and 3rd level spells] would really dial them to eleven.
This is sort of like the unlimited PTO trend in the USA. Telling people it is unlimited gives them the perception they've got a huge benefit ... but in reality, you just don't end up using it as much as you'd think.
In my vision we'd get rid of that 'cantrips get better as you go higher in level' and replace it with unlimited use of lower level spells. Instead of an unlimited mage hand, you get an unlimited unseen servant. Instead of unlimited light a 20th level cast could give you unlimited daylight. You're worried about a 20th level wizard blasting unlimited fireballs and/or lightning bolts? Why? When will they use them? They've already got so many spell slots of higher than 3rd level that they don't run out during a day of adventuring ... they'll just use these 'extra fireballs' to clear out minions, knock out walls, etc...
This mostly gives the PCs an increase in out of combat or precombat abilities. I've played around with it - and it isn't a problem at all. The fact that it looks problematic and overpowered at first glance is a feature - not a bug.