There is data is so many places, I am not quite sure where to look.
I have 15 tomes and 3 d blades. I have 17 compasses and 5 gloves.
It is likely a coincidence, but I just wanted to shout out that this game leans pretty heavy one way for me!!! What are the odds? Just curious.
Feel free to move to wherever is appropriate.
The drop rate for 4* mats is pretty low. I don’t have numbers but it’s probably a 2% or less drop rate from a wanted chest? Slightly higher I suppose on a War chest.
However the rare quests offer a good source of guaranteed mats, they happen roughly every 10 days and cycle in a pattern
As far as the distribution, that’s not surprising. RNG is streaky by nature. I currently have 1 blade an about a dozen tomes