I still haven't figured out how to take screenshots, so unfortunately this is text only. And minor, non-story spoilers follow...
My party was walking through the Black Meadows, a barren patch of land that appeared to have been desolated by a battle involving a small army of dragons. As as creep out of the wasted meadow, we entered a small forested region and encountered some Forest Lurkers. These remind me of the dnd "shambling mound" creature, and are highly resistant to piercing damage, have a lot of HP, pretty good defenses, and pack a mean punch. I started fairly conservatively with my spell usage, having my cipher paralyze one of the two lurkers, while the wizard used his encounter powers, the rogue tried to sneak attack her way through their high piercing resistance, and my fighter tried to tank.
After a fairly long battle of attrition, I finally dispatched one, but my cipher was out of focus, and my priest was using all of his spells to heal the fighter who was taking a lot of damage from the creatures. Suddenly, the last of my cipher's spells wore off, and the last lurker knocked Eder, my fighter, prone and started to really pummel him. I realized that he was not just in danger of being knocked out, but because of all the endurance healing I'd used, he was actually getting very close to being permanently killed!
Fortunately, at exactly that moment, my cipher hit with his crossbow, regenerating just enough focus to cast a desperate spell. I cast amplified thrust, and, with Eder being only one more hit away from death, the spell slammed the monster back away from my fighter, allowing my priest and rogue to run interference. The party still might not have survived it--I had completely exhausted all of my spellcasters' spells by that point, and my ranged rogue was rendered useless by the piercing resistance--but I realized that I had a scroll on my wizard. He rushed forward to cast it and managed to deal 60 points of damage with that final attack to kill the monster.
Also: this game is really fun.