In my D&D Homebrew setting of MAWVETH, Mammon is an Arch-Devil of Hell and the patron of greed. He is the smelter of soul coins and moneylender of souls. He resides on the third layer of the nine hells and remains in good standing with his fellow devils.
Mammon represents greed, lust, and ambition. He is two-faced, vindictive, and arrogant, always looking for imagined insults. Mammon’s servants wage economic warfare on good, prosperous nations in an attempt to collapse their economies, hoping that in their desperation the newly impoverished souls will turn to Mammon for salvation.
He is indirect and venomous. Mammon is known for speaking in riddles, never coming straight to the point even when giving orders. His servants emulate this behavior.