Back on the CoX forums, someone posted a link to a flowchart they'd made about how to use Fire Blast. I remember one of the paths on it was something along the lines of 'Is everything dead, yet?' --> 'Can't see, too much fire.' --> 'Add more fire.'

I thought I had it saved, but apparently not, and Google has not been my friend in this case. Does anyone have a copy, or a link to the original posting? Thanks!