Thoughts
Shallan is such a great example of why I love overpowered characters. She is so powerful. [spoilers for Stormlight Archive]
She has so many secret magical abilities. And she's constantly barely making it by because her goal is not to quickly kill her enemies.
We get to see her constantly make difficult and interesting decisions about how she's going to abuse her powers. She could whip out her Shardblade and start killing people. But she doesn't want to. That wouldn't be a victory for her.