Firax is a Lava Monster from the 2010Power Miners theme. Firax has a transparent orange body and head, with black arms. Firax is the same orange colour as Firox. Firax is included in two sets, as shown below, making him the most common Lava Monster. Also, Firax is said to be a Firox on fire; an article on LEGO.com mentions What happens when you put a Firox in super heat? You get an even trickier Firax to deal with!. This explains that Lava Monsters might be Rock Monsters somehow exposed by high levels of volcanic heat to create Lava Monsters. Firax likes to trap Power Miners and take their vehicles for joyrides - melting the seats in the process.