I've got a Halfling Inquisitor of Calistria that I run with in a PbP.
Although lust, trickery and vengeance are the three daggers of the Calistrian faith - I find that there's an aspect that can sometimes get overlooked. That is the pure unfettered individualism of the deity.
A true Calistrite does what he/she wants regardless the consequences and fallout. Bonds of 'friendship' are only one-way, as a Calistrite could drop a years long bond at a whim if circumstances change.
I view them as endorsing and worshipping personal choice, and the need to engage with the world with eyes open. A rich heir beholden to rule by convention is pitiable, while a destitute drug addict beggar might be viewed favorably if the beggar chose that life.
A beautiful example in print would be Nicomo Cosca from Abercrombie's most excellent Best Served Cold.