Just a draft:
The High Church of Armok
Armok, the God of blood, is the only constant in a chaotic random multiverse. He is not a pure destructive force per se, but is also worshipped as a God of creation. Destruction after all, is the first step in creation. He is the patron of ambitious builders and workaholics, he is a God of ingenuity, architecture and craftsmanship. Armok's methods are not so different from those of some white magick deities - there must be conflict. For when there is conflict there is the stimulus needed for evolution, complexity and growth. Through fire comes tempering, refinement and beauty.
Hidden agenda may include flooding the world with magma (or just destroying it) in order to build giant monuments from the ruins.
Hierachy:
Tentatively the church is loosely organised into about 16 grades of attainment ranging from dabblers to Grandmaster-toads. (Surely we can do better than this)
Policy on property and duties to the church: All your stuff is ours. No exceptions.
Demographics: Appeals to
Rich eccentrics
Short, bearded, hardworking psychopaths
Alcoholics - but curiously, Armok is capable of granting alcoholics a high degree of functionality even while drunk. There are some who claim that this is some form of trance, or a raising of the consciousness through alcoholism.
A curious combination of violent and industrious people in general.
Natural enemies with:
Everyone
Tree hugging environmentalists,
All that is sane in the world. We might be driven underground pretty early on.
Everyone. No exceptions. Including rival dark gods.