Gas

Gas is a custom brew dispersal method component from Witchery. Like all other dispersal methods, it must be put into the brew last before bottling. It can be obtained by putting a Wool of Bat in the brew. Gas dispersal will cause the brew to be a gas potion, and will, when thrown, explode into a gas cloud that will suffocate all nearby air blocks. The effects will be applied to all creatures in that gas cloud, however, their effectiveness will be reduced.

This dispersal method costs 0 extra Altar power.