I think you can do the same thing with a survivor, albeit more difficult. Just run out of the line of sight of your enemy, and use the special skill hide in shadows. Then slowly walk up to your enemy (but don't get too close), use a ranged spell (like meteorstrike) and blast away. Use a few stamina potions when your stamina runs out. It's a bit cheesy, but at least you're not summoning 100+ level things against certain tough bosses... and it could theoretically make sense since survivors can sneak and should use it to their advantage in battle. :P
