As a side note, as far as I can tell, the example in point #3 is wrong, is it not?
Goblin warrior has 29 hit points. Meteor swarm, 8d6+Int. I'd guess, 4.5x6 + 6 (Int) + 6 (Implement) = 39. Would miss only on a 1, for 1/2 dmg.
Still, I can see the intent of the point, and damage does scale a...