“Suits they [Quori] fashioned of material things, solid things. The idea for these they stole out of the dreams of their enemies. Using this new form they were able to wage battle on the material plane.”

MAC’s family didn’t invent the idea of warforged, or at least the idea of the GIANT warforged.

Rusco learned while reading on Siregull:
Xen’drik - a race of Giants who roamed ancient Eberron. Xen’drik and Quori are at war with each other.

“Today was a test, a game to play with the latest model. This one had a head and two arms. The arcane work was easy enough to complete for Furthran. His mind made quick work of the glyphs and his hands worked with grace in bringing life to the stone and wood in front of me.
The challenge was the next step. Rochs placed carefully in a row would need to be moved with purpose and a sense of tactical awareness. Streoroch was a favorite of mine since I was a boy. I hoped, quietly, this endeavor would not ruin it. With the first move to my opponent, we were off to a strange start.
Pieces slid back and forth for hours. Each move meticulously planned by the fresh life before me. No rules mistakes, a few slipups on basic strategy, but learning. In ten games it had not defeated me once. This the eleventh was shaping up the same when it made a tactical shift. The construct began to stare at me. Moving pieces without looking, had it learned something new? A pattern of watching my moves may have giving it the sense of the game without keeping an eye on the table.
An unnerving moment only ended with my last roch blocked off. I had lost.
There was no joy in winning, no glimmer behind the disembodied face. Just an empty shell, ready to be filled. “