In order to churn out infernals as quickly as the Deathforge seems to, they must have an area dedicated to summoning the elementals that form the core of the infernals.$B$BThe summoning chamber is likely to be found below ground, near a pool of fouled water or lava. Locate the summoning chamber within the Deathforge and find a way to end their summoning ritual. The mo'arg involved in making the infernals may carry a tool that will help disrupt the summoner's magics.