Grade 3+ have a lot more random events/spawns. Reading how bored you seems to be already, did you actually played/farmed it enough yet?
To me this BQ is just an introducing. I think next updates/new fields will be harder.
Now what I don't like about BQ is how it is full designed for Hero. I would like to try with other class but I already know it/I will perform bad in comparison. So why bothering? :/
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