Let's take a look at how the Engineer's charge mechanic brings some much needed depth to Torchlight 2 and makes it more than a potion-drinking simulator. However, I found that the charge mechanic didn't bring enough to the table to make resource management interesting, with one massive exception: The Engineer.
Of course, Torchlight 2 has another resource, the class-specific “charge” resource, which is built by damaging enemies but has class-specific effects and usage. Need mana? Drink a potion! It's not an incredibly deep system, especially compared to how resources are implemented in Diablo 3, with each class having various ways to spend and recover their skill-using resource. The biggest problem I had with Torchlight 2's actual action was the lazy resource management system. However, the Engineer class offered a glimpse into what the future could hold for Torchlight. A lot of things about the game felt carelessly designed, which can't be shrugged off with a “well, it's just a beta,” especially with the expected release date so quickly approaching.
My time with the Torchlight 2 beta featured some incredible highs and some disappointing lows. Why The Engineer is the Best Thing About Torchlight II