[Poruku]

This allows artillery mages to exist and I think artillery mageing should be a thing.

I agree. The issue with talis is that it turns every mage into an artillery mage with no tradeoff. Perhaps if it limited movement or made you vulnerable in some way it would be a fair archetype.

Applying farshot would only really matter against evasion builds, much like with bows right now. As for reducing the damage, I feel like that would feel kinda bad to use and difficult to balance.

Instead, to get a fair "artillery mage", I feel like there should be some class skills that increase spell range with a drawback, or simply some spells made to be used at a long range