Unless I missed something in my quick read through to refresh my memory, you don't do an attack roll for a damaging creation spell.
You can attack with one, I mean if you make a sword or something, but that's just a normal attack roll. Not an attack with a creation spell. And if you create something that causes damage when they touch it (fire, lava, whatever), it's not an attack roll there either. Again, unless I missed something in that read through.
The range of the spell is it's range. Not a range increment. If it doesn't say range increment, it's always, as far as I've seen, just a range.
Compel and Enchant spells don't cause damage. Not by themselves.