Kelsier and his gang are always doing stuff- and we do see Kelsier doing Big Stuff sometimes. A few action sequences, a few ball sequences, breaking into the Big Scary Castle and that whole fight, running to save the army, seeing everyone get slaughtered in the fountains, the Mistborn-on-Mistborn fight, Kelsier vs. the Inquisitor (then being slaughtered by the LR), and Vin attacking the castle, and being saved by Sazed.


There's a LOT of action in this book.



And the Steel Inquisitors are monsters with giant spikes coming out of their skull.


And even if it's just kung-fu with people being able to jump high and control giant metal objects, I think that has potential!