8380 used to work in a factory in the clockwork city, until a group of rebels rescued him from its cruel grasp. In their attack on the factory his original body was badly hurt, but not unsaveable. The brightest engineer the rebels had, a gnome woman called Sahna Lightspark, managed to both reassemble him with the help of scrap parts and reboot his memory almost completely. The gnome taught him to speak common and showed him the basics of engineering, something he took quite a liking to and got quite good at.
On one of his walks with Sahna, who had become a sort of big sister to him, he took a piece of metal, shaped it into a rose and inscribed it with Sahna’s name, written in runes. When it was in close proximity to Sahna it would bloom and emit sparks in varying colors. When it was further away from her it would close up tightly and not open for anything until she was close to it again. 8380 gave the rose to Sahna and when she asked how he had made it he was stunned. He did not know. It had just sort of...come to him naturally. After that it was like something had awoken within him. The knowledge of runes. He started writing runes all the time without even really thinking about it, sometimes causing spells to activate when he didn’t mean to. When he had been with the rebels for a few months Sahna gave him a gift. She had built him a new pair of hands. Each finger was equipped with a different tool that could be used for engineering and artificing.
Unbeknownst to them, The Designer’s were furious at the loss of one of their warforged servants and had sent agents after him. The first agent took down 10 of the rebel warriors before it was finally killed. The rebels concluded that they weren’t safe with 8380 there so they decided to send him away. Sahna was furious and said that if he left, she did too. And so they both packed their bags and went on the run, with the agents of the machine prince right behind them.