Is it possible to trick Tahm Kench?
Or perhaps place one in a position where their continual success is advantageous to Tahm? For example a man becomes the ruler of a kingdom through Tahm's help, and in return provides Tahm with continual new suckers to "help" Alternatively, maybe Tahm gives someone too much power and when it's time to take away everything they fight him off? Or am I not understanding this correctly?