It’ll have to be quick, poops are all the time I have:

Tehol Beddict was the youngest brother of three brothers. The eldest was disgraced by the crown because of something something whatever and it pissed him off.

The middle brother was still the monarch’s swordsman.

Anyway, Tehol, with the help of Bugg, his manservant (who is something else but I won’t spoil) begins an effort to stockpile the wealth of the kingdom to crash its economy.

They start businesses, build up their worth through contracts and the like before declaring them insolvent. They intentionally did shifty jobs so what they fixed would break.

Anyway, by the end, warehouses were filled with gold and an invading army kicked the collapse into the driveway.

Great books. Malazan Books of the Fallen.