firebolt vs longswordSo it's +20 damage at 20th level? Every time? Sounds a might strong, even at per day (which I'm assuming applies to the cantrips as well). If the cantrips are at will and you want to add level to damage IDK know what to say.
4d10+20 vs 4d8+28 (assuming dueling style)
Makes them comparable to a fighter with extra attack (assuming no magic weapons)