I suggest better fix the Quest Tears of Sparda(TOS) reward inside Mystery chest TOS quantity, why i say fix?
KIll Mutated:
Archer x20
Assassin x20
Defender x20
Warrior x20
Templar x20
Attacker x20
Gunner x20
Shadow x20
All of these requirements are necessary to receive a reward inside the mystery chest. TOS only have a random quantity. Is it fair for us to receive only x1, x2, and x3 TOS? Completely scamming us, totally wasting time. For TOS discipline, it said "0% Iron Rate to +7 x 20 pcs/enhance." I tried enhancing to +7 x 20 pcs, but it didn't result in any improvement. I'm wondering what Yiteni Stone will do with the description "for upgrading to +0 to +6 High Chances of Iron Rate beyond +6." No action yet since I reported this bug. I truly despise this situation, and I believe that others share my sentiments. About 20% item drop chances, I don't know you apply this based on size of map, but I can see you didn't apply it. I tried many farming patterns but still didn't get three gold stats. You should increase another 20% of item drop chances.