People like to talk nonsense here. Fire mage suffers only from two bugs. Fire power talent doesn't make your Flame Orb explode and ignite isn't stacking. Ignite bug is pretty huge but mostly for pve. As far as I know devs wanted to get ride of one-shoting Alys even if it was like that back in retail. Instead of blaming mastery (works fine) do some research and provide devs with some kind of information about Ignite stacking. There is one priv cata server that simpy made cap for Ignite. Lets say that it can cap to 100k, that way you can do some blizzlike dps both in arena and raids.
Here you can find tons of informations about Ignite:
http://forums.elitistjerks.com/forum...ge-compendium/

