Water Diviner

The Water Diviner is a tool from the Witchery mod. This tool is used to determine if there is a water block beneath a block. It has a seemingly infinite range below the block. If there is water, it will emit black particles, if there is not water, then there will be no particles. It will not use durability if there is no water beneath the block it is used on.

Note that the particles settings in the Options menu must be set to Decreased or higher to be able to see the particles.