Originally Posted by
namliam
Because your combustion is initatially only hitting the one leg and body instead of multiple legs and the body.
Also yoru +100% damage on the leg DOES NOT get coppied to the body, if you get a 50k ignite that you spread to the body the +100% is taken away and only 25k ticks happen on the body. Same for combustion, the cleaving from high debuffed targets to normal targets has been fixed a good while ago.
Great example of which was Firemages doing 500k dps on Ambershaper which is no longer possible, same here on the legs.... Futhermore Inferno Blast can now spread your dots to 4 additional targets, bar LB which still is limited to 3. Thus spreading your Pyro, Ignite and Combustion dots off the body to potentially 4 legs, if even only temporarily is a 400% damage boost vs 100% damage boost on the one leg.
This not even comparing to the fact that you preferably as a raid want to have your melee be inside the circles 100% so they get 100% uptime as they can utilize that much more efficiently than we can unless you are somewhat lucky. On top of which having your tanks focus their dps (in part or full dps gear) on normal increases raid dps A LOT towads meeting the 510+k dps requirement of this boss
This not even considering the fact that with 3 million HPS and 100k fireballs (non crits) as well as 200k Pyro's (non crits) you will probably need say 10 fireballs and 3 pyro's plus added LB damage for 1 million from fireballs and 600k from Pyro's (all non crits!) to get the proper ignite happening, while standing in one place and inside the cirlcle and not have the leg die before dealing another million or more of combustion damage is unrealistic at best