Mouseover pet abilities

As the Warlock has several different demonic pets to choose from, some are more difficult to manage than others. For example, with the Grimoire of Supremacy, your Observer has an Optical Blast silencing ability. A mouseover macro allows you to make your demon silence your mouseover target without your having to switch dps targets.

#showtooltip Optical Blast
/cast  [@mouseover,harm] Optical Blast; [harm] Optical Blast

If you have a normal Imp, your macro could look something like this:

#showtooltip Singe Magic
/cast [@mouseover] [@player] Singe Magic;

That will Singe your mouseover friendly target. If none exists, it will Singe your character.