I've been playing some Shadowblade lately and something that's bothering me is how to deal with enemy magic users. How do you avoid getting nuked by them and getting killed instantly? This class seems to have very weak defenses, and also relies on getting up close for dps, and so ranged enemies that can suddenly output large amounts of damage give me a lot of difficulty. I'm only level 10 atm (died several times already) and this is a problem I keep running into. I'm using a Stealth build with Shadowstrike Flurry, which can one-shot a lot of things including these casters, but the problem is getting close to them without them suddenly throwing a random spell at me and potentially killing me instantly.

Also, I'm wondering about the Heightened Senses talent, and how important it is to Shadowblades and Rogues. I'd imagine it's pretty important since while stealthed these classes don't have any light radius and therefore can't easily see enemies? Is this talent worth getting multiple points into, and even maxing out?