Bound Fossil
Bound Fossil is a fossil type.
Item acquisition
Can be acquired in one of two ways in the Azurite Mine:
Is sometimes sold by Niko the Mad for 10 000 Azurite
As a drop from following Biomes:
Petrified Forest
Abyssal Depths
There are additional ways to acquire fossil. Read Fossil article for details.
Spawn Weight Multipliers
Using this fossil multiplies the spawn weights of all modifiers with "minion" tags by 10, "aura" tags by 10 and "curse" tags by 10.