What does it mean that the last damage pile of underground Lantern Festival has more decreasing damage? Master, please answer?

Reducing means that it is unprofitable to increase only one kind of damage compared with increasing multiple kinds of damage. For example, if you have two pieces of equipment, each piece can give you an increase of 50%, and they are all final injuries. Your final injury is 100%+50%+50%=200%. If one of them is replaced by additional damage, it becomes100%+50%+(150%) x50% = 225%.

The decline in income has nothing to do with occupation. Finally, the yuan section adds final damage to the whole set. If you continue to accumulate the final damage, you will suffer a big loss and get twice the result with half the effort. Declining is just not high, not low. In the dungeon, except for "skill attack power", all other attributes are decreasing. The reason is that the calculation methods between the same attribute and the promotion means are additive. I hope these are helpful to you!