There are two phases to this fight and you can get this in either one. The first all you do is wear down his health and dodge any of his attacks. Turn on all of the incinerators and lure him to one. I used Web-Strike to hit him close to the fire, if not into the fire. Do a few regular attacks if he didn't land in the fire. You can easily knock him into the fire 3 times before phase two.
During phase two he will jump from pillar to pillar, and like phase one, make sure all the incinerators are on. Locate him and seismic blast him when he's directly above one of the fires. You will have to take care of some Carnage minions and then locate him again and knock him down 2 more times.