Lava Blaster contains canon Hero Factory information.
This article contains canon information but has fanon information added to it. The canon version of this page can be viewed here.
Fire Lord's possession
Originally, Fire Lord discovered the technical interior parts for William Furno's Dual Fire Shooter, and decided to "improve" the design. Based on a modified tungsten/cobalt blade design inspired by Furno's shooter, Fire Lord added a Heat Induction Core that not only fires coils of plasma, yet it can also siphon fuel and energy from whatever it touches. By simply plunging the blades into a Fuel Pod. For example: Fire Lord is able to seek out all the fuel and use it for his own evil plans. The blades are very sharp, sharp enough to cut through steel without slowing down. Heroes are advised to avoid the Lava Blaster at all costs. (From Lego.com)
The new Lava Blaster
When Luis Blazer saw the blaster, he became interested in it and created one with the same outer structure, but with an improved interior design. However, his perfect form forced the lava blaster to gain both inner and outer improvements, becoming his most powerful weapon