After 1. 12, the mage can't brush it alone, and the monsters with hate chains in the copy can't be separated.
When NAXX was first introduced, the hammer fell at a very high speed.
A week after the single brush method appeared, there were two people in our guild.
Four electric hammers, two Styx shields, 1 eternal flame ring, two shaman shoulders, 1 shaman legs, 1 doomsday.
Two weeks later, the decline was adjusted to the previous 1/5. The previous decline rate was around 3%.
Because I can't get a purple color when I brush more than 30 monsters. Now it's about seven thousandths, about1150.
There are 8 NAXX parts 1 * * *. If the probability of purple is divided by 8, it is probably the critical rate of electric hammer or doomsday.