It changes many factors and Increases Single Player Fun Value, Ultimately Makes Single Player Diablo II Much more Expansive and the Best it Can be, Help and Feedback is Greatly Appreciated ! There are many changes, Level cap is raised to level 180, Elemental Reduction in Higher Difficulties is Reduced, There are more stats per level up, book of skill is a rare drop item, Inventory and Stash size has been maximized.
I've decided to come back and play again.