This is a concept of a fire rift colossus for the "RIFT Create a Colossus Concept" by Jennifer H. Williamson.
"The Crucible" is the result of one of Maelforge's, dragon god of fire, attacks on Silverwood forest. Although the fae are viewed with suspicion by the Guardians, the peaceful ones tend to be left alone. Unfortunately, neither do they receive help from the faction when under attack. Emberwing, the fairy, and her companion treant, Tinderheart, were peacefully frolicking in the glade when Maelforge struck. Unable to defend themselves, they were consumed by the wanton flames. In a twist of fate, Maelforge decided to convert them into minions of destruction, intent upon releasing them upon Silverwood and the elves as his ultimate weapon of destruction and reforge it in a crucible of fire.
Defenders are common place in Silverwood, but they will have their hands full when battling this colossus. The former treant holds giant coals as his hands and feet, which pound the earth with explosive blasts of heat. It's most devastating attack is where it rears up and unleashes a massive blast of molten flame from it's furnace-like belly.