Tripurasuras, or sly ones, are among the weakest asuras, manifestations not of divine mistakes but instead creations of the most powerful of asuras exhibiting their loathing of the gods by creating blasphemous mockeries of their creations.

A newly created tripurasura most commonly exists for one of two reasons: to give an asurendra sage the raw materials it needs to create more powerful asuras, or to seek out mortals- especially mortal spellcasters-to recruit into the asura cause.

Clever Corruptor. Using its power to assume a pleasing or innocuous form, a tripurasura wanders the world, seeking pious mortals to corrupt. When it encounters a promising spellcaster (typically one who has some sort of link to a church or religion, but not necessarily a divine spellcaster), the tripurasura presents itself as an apprentice, pilgrim, or other type of curious student eager to learn from the spellcaster. The tripurasura keeps its true nature and its powers hidden and seeks opportunities to steer its "master" away from decisions it might have made in good conscience to acts that promote the collapse of religious belief, faith, and society. When, as it inevitably does, the wayward spellcaster runs afoul of justice or is confronted by those seeking revenge, the tripurasura fades away to watch the final stage of the spellcaster's fall from grace, then seeks a new victim in another city or region.

Aghasuras, or the poison ones, are massive fiends who have perfected the art of ambush and hold to duties of guardianship and butchery. It is said that these frightful ophidian monsters came into being when a deity granted free will to her favorite serpent pets, but when these pets were left to their own devices, they slipped into the deity's favored temple and slew all her greatest priests. The serpents who survived the deity's wrath became the first aghasuras. An aghasura is 30 feet long and weighs nearly 7 tons.