Spoilers:
As best I could find in chapter one there is only one item that improves spellcasters chance to hit: The warped headband of intellect.
This will add plus one to hit for any wizard with an intelligence below 18.
There are no other items available. This leaves spellcasters at a disadvantage. Physical damage dealers have many plus one weapons at there disposal. Should they chose to up there primary stat to 18 that gives them a plus five to hit as apposed to plus four for casters.
That's a bigger boost than it sounds. Wisdom, charisma, and intelligence based to hit users could really use something to help keep up with the physical damage dealers.
Here's hoping for items such as wand of the war mage or such to give the spell casters a bit of item parity.
