China's publicly disclosed information on item probabilities

Wow, very cool to see it, i guess it's similar to the KMS, since the rate shows 1.4% for black cube to tier up unique to legendary, which seens too low, people using like 20 can tier up, so i would sugest 5~8% in GMS(to tier uniq to legend).

Edit: Or maybe evne 40 cubes, still a 2,5% chance to tier up, higher than here.