Much better relationship of monsters to environment than in the Diablo and Fate series.  Much larger game, lots more monsters, some pretty nasty traps.  Game ramps up difficulty of dungeons for the second city you travel to a bit too quickly in my opinion, though I'm playing on veteran.  Spell are far, far too few, and haven't found anybody selling them.  Like the new enchant system.

You basic weapon attack uses no mana, but every single active skill uses it.  If you've got good weapons though your basic attack makes a good backup for dealing with low numbers of weak monsters.

EDIT: Or if you're using the Outlander just throw your glaive and instantly gib them.  That thing is the No. 1 skill to level as the Outlander since it does Charge, DPS, and crowd control with its rebounding.

By default they set your autoattack to an active, mana using skill.  You can change it to a vanilla auto attack that doesnt use mana, which is likely what you will need to do.

Having a lot more fun with Torchlight 2 than D3. D3 seems geared towards lots and lots of grinding whereas T2 makes the grind feel less like a grind, if that makes any sense.

I'm about 60 hours into it now, playing a Duel Wielding Summoner Outlander on Elite difficulty.  Haven't even reached Act III yet!

Sure, Torchlight II is entirely derivative and virtually free on any new ideas, but it's so damn well executed that it's almost impossible to call it out for that.  It's fast, fluid, and feels like it's just itching to let me have fun.

For comparison: I logged into my friend's Diablo III account and finished the whole game in about 6-7 hours.  It's was the most boring ARPG I've ever played.