I'd just like to get a sense of whether anyone else, besides me, is annoyed by the way wizards act when they're out of arcane power.
Right now, if my character is out of arcane and I attempt to cast a spell that uses arcane, the character (if using a melee weapon) will attempt to run into melee range to strike the enemy. This, to me, will be a huge issue in hardcore. I've already found myself in difficult situations because the character moves unexpectedly.
If I remember correctly, the sorceress in diablo 2 would simply emote that she was out of mana, if you attempted to cast a spell without enough resources. Personally, I prefer this behaviour over attempting to auto attack. It's safer and requires less babysitting your resource pool.