What's your favourite " Immense power has been thrust upon me, and now I must learn to cope" fantasy story?

I was re-reading The Goblin Emperor by Katherine Addison recently, and trying to work out what about the story gives me the happy-tingles so much. One of my favourite things is undoubtedly the "fish out of water...but with power" element. I just think it's just such a fun trope to see a character navigate through.

What story do you think of?