Magnus
Demon god of lust, pride, greed and revenge or as his worshipers put it, “All the best things in life!” He is nearly universally loved by demons for demanding very little of his worshipers besides that they strive for the very best life has to offer, taking a tiny portion of their sensations as the price of an eternal orgey of pleasures in the afterlife. He is also known to frequently grant boons to mortals who please him, bring them fame and fortune for a short time before growing bored and taking it all away overnight.
His worship is banned in almost all human and dwarven cities due to a long standing feud between him and Father Sun over humanity, whom Magnus had wanted to patron when they first arrived. However, the first human king, wary of the demonic appearance of the Lord of Demons avatar, shunned him in favor of Father Sun. From that day on, Magnus has desired revenge for his wounded pride, but bided his time for over a millennia to find the right time and the right agent.
His symbol is a golden cock and balls. He finds this hilarious.