Just got to part 43 of the tutorial, adding collection items to the town and field. During testing, with the fireSword equipped: for some reason the player character was taking -90some damage a turn in battle. I assume it is from the fire effect hitting the player not the enemy, rather than poison, which does -5~12 damage?
I went back through the setup for the fire element and the fire sword, comparing my values to the tutorial, and found them entered as posted. I was fighting an Evil Supporter in an Active Time Battle.
More incidentally: I notice when Boost or Lessen abilities are used, the Speed up/down message, and the Strength up/down message overlap each other. I didn't see a way (being new) to display one then the other, or offset one display down below the other.