Infraction: 8. All accounts must have a valid WoW profile.
Message to User:
Two things - first, nobody cares about how long you have to wait to use your combustion on trash. Second, please update your profile; we do not allow anonymous posting here.
Yes it does!
It is basically just 100% added to all damage AND CD. Net result is the same DPS wise but it is easier to align with other CD's
However, without the glyph you're not quite so reliant on waiting for THE ignite before casting Combustion. Similarly you get to use it on adds/trash simply because it's available again much sooner.