Huh. I thought I did explore everything in the tutorial cave, but I was still 500 xp shy of hitting level 2. As far as fire goes, nope, no fire spells or scrolls to light the oil barrel on fire. After 3 more tries, I managed to get through the fight with only one character dying, so I used the res scroll I started with. No idea why they'd make that fight so difficult when you're not guaranteed to have anything to manage it with.
