Jade War by Fonda Lee

In the gripping sequel to a fantasy saga set in an Asia-inspired metropolis, two clans wage a violent turf war for control of magical jade, which grants its users enhanced abilities. As the struggle for supremacy escalates, the Kaul family of the No Peak clan must navigate dangerous political waters, both within their city and on the international stage, to protect their hold on power. Amidst betrayal, bloody skirmishes, and complex alliances, the Kauls are also confronted with the personal costs of their ambitions, as they strive to uphold their family's honor and legacy in a world where loyalty is scarce and enemies are everywhere. The 11024th greatest book of all time