Revbas

Summary
Revbas is a spell that identifies and moves away any gases in the air with a PH level higher than the skill of the caster will allow. By moving away any gas even remotely basic, the air effected will become more acidic.

The PH limit in the air is determined by the strength of the caster, and the area of effect can be shifted by the caster, though as a blanket effect it generally has a limit of a 20 meter radius.

Uses
The spell is used as a basic combat spell for many trained mages, and is applied by directing the area of effect of the gas into a narrow stream in the direction of the target.

It can also be used to effectively destroy machinery, sabotage experiments and generally mess with any fine processes by greatly upsetting the areas PH.