[Slydria]

It seems that sometimes the tutorial jammer starts with 10 Armor instead of 0. (You can tell this by examining it's profile and clicking on where battle tab would be and well, only doing single digit physical damage to it.)

Beyond that bug, there's only a small handful of people that I could see seriously struggling the tutorial, such as Liches due to their tiny HP or people who aren't that aware of certain mechanics. (e.g. hit penalty for attacking in 1 range with a bow, overstacking on BW also reducing hit rate such as with Breastplate and Tome, not aware they can switch classes, etc.)

That said, perhaps something to consider would be replacing the tutorial jammer with a training dummy so losing (outside of hilarious bugs) becomes impossible.