Furnace clapped gleefully as the beam plowed trough rows of assailants.
Enthusiastically he regarded the battlefield, not quite understanding it, why it was happening.
But it sure was impressive, he had never seen so many materials before, so many new discoveries.
New ways of energy flow, new ways of acquiring ingredients, food.
He could smell scents similar to the food he was served before, it came from the fires, or specifically the burning creatures.
So Furnace had a new theory where food came from. Burned flesh.

Running at him at full speed was another wave of humanoids. Clad in flesh, leather and steel and screaming loudly.
They fell over as they got shot with bolts, so that's what that those were for.
Furnace wanted to share his findings with the girl, he wanted to experiment with the new things he'd learned.

[b][color=DodgerBlue]”Oi, kid! Fight ‘em back from us! We are going to need some time!”[/color][/b]

Furnace took his time to reply while he concentrated on a torch lying on the ground in the path between them and the approaching horde.
The flickering light of the fire reflected warmly and chaotically in his deep jet black eyes.
"So sorry, friend. This fighting thing is interesting, but with all these components before me I can't resist to take advantage..."
He dropped the blade beside him and as he threw his palms forward he let energy flow freely forwards.
[url=https://www.youtube.com/watch?v=sZpbCLdg-r8][b]"And forge!"[/b][/url]
The moment the flow of power hit the fire it erupted into a tower of fire and flame.
With a flick of his wrists the tower concentrated to a white hot ball that hovered amidst the now scorching bodies.
Kobolts and goblins screamed in horror as their skin cracked, their eyes boiled, their clothes burned and their steel melt.
In full concentration Furnace drew his small smiting hammer and stepped forwards. The smell of ash and liquid metal comforted him.

With the fires of the furnace remaining in front of him he walked calmly forwards, the fires consuming everything in his path to fuel itself.
A few goblins in chain circled round the fire and charged him. Furnace stepped back a little so the fire came closer to their path, as the metal started to melt they cried in agony, Furnace stepped in and hit one of them in the chest with the hammer, sundering the mail and hammering partially molten metal into his solar plexus. Another tried biting trough the burning pain and stabbed at him with a spear. A nimble sidestep and a kick to the brittle charcoal staff sent the top of the spear flying and raining drops of liquid steel on any other contenders.

A dangerous smile appeared on Furnace's face as he danced around his furnace and spun around whilst smashing everything that got in range.
A smile that said this was his element, his domain.