Indeed they are great for grinding. One thing I realized is that the higher Lv challenges have the best weapon drops. Especially with Apothecary mixtures. But even without the Apothecary, the Lv11 & 12 RUYKOC Challenges definitely have better weapons than lower Lv ones. At point, I was...
I just discovered a slightly better challenge square. It's also on the Master Quest Map in bottom left corner. It's another "Rack Up Your KO Count" challenge, only it's Lv12 instead of Lv11.
I'm glad it worked well for you. I guess it is pretty hard to reach this square. I had already completed the Master Quest Map and was working on the Twilight Princess Map when I needed to get some materials and EXP.
You don't even need to use your best character and weapons for this map. That's...
At one point, I was struggling to find materials from Imprisoned and Argorok. I also needed many of my warriors to level up and get better weapons. Then, I went back to the Master Quest Adventure Map and stumbled across one square that caught my attention. Near the northeast corner of the map (I...