The wizard hat gives 5 mana per turn, and I think +5 mana at end of battle. The ring adds 2 attack to all weapons around it.
So I can finish almost every battle in 1 turn, by doing around 140 damage with the sword + 90 damage using the axes. On the few harder battles like the king, I can just use accumulated mana to do like 500 damage in one turn. (I didn't continue onto endless mode)
I could try to optimize more , but I didn't use anything besides the ring, and finishing every battle in one turn. (so shield, armor, etc is just for decoration)
it was a fun game, but I wish I hadn't found a way to just one shot every battle and then one shot everything for 5 floors in a row
The wizard hat should be nerfed to give less mana per turn. I'd say 3 would be better than 5, in my opinion.