Erosion

Erosion is a level 2 custom brew effect component from Witchery. It is obtained by putting an Oil of Vitriol in the brew before bottling.

A potion with any dispersal method will have its effect. If the potion applies to an entity, they, along with any armor they are wearing, will take damage. If the potion applies to blocks, it will destroy the blocks in an area around its position of impact. Obsidian blocks will drop, but all other types of blocks will simply vanish. The damage dealt and the range is dependent on the power of the potion.