How about an added feature of something like "chance increasing items" or whatever you would want to call it.
There could be a few of them.

Increases chances of rarity from soul drops for X amount of time.
Increases chances of rare talisman drops for X amount of time.
Increases chances of xp material drops.
Increases chances of rarity drops from sacrifices...
ETC...

Usually I don't Like to encourage new content while there is so many bugs, but this could be a great addition to the game...