Is there something in the game that provides casters with bonuses to their spell attacks, in the way that weapon potency runes add to weapon attacks? I’m not seeing anything. If not, it looks like spells that require to-hit rolls just end up being less likely to land than spells that require saving throws, and I don’t see an obvious balance reason why that should be the case.
What am I missing? I’m just figuring this system out and I didn’t follow the playtest, so I’m probably just failing to account for something.