I also have never played Black and White, so I constructed something that's probably a little 'out there.' Comments much appreciated. Questions also-- I've tried to be as clear as possible, but it's a case of "I know what I mean."
Name: Chaurn, or simply the Taker
Tribe: The Tepanec
Divine level: 15, but this can be misleading.
Chaurn's symbol is the bottomless pit:
The Pure Prayer that Created you: In their rise to power, the Aztecs walked across the bloody backs of entire islands. One such island was Azcapotzalco, home of the once-powerful Tepanec. This particular island rested in a converging series of currents which drew jetsam from many surrounding islands onto Azcapotzalco's shores. The clashing currents made approach to the island difficult and dangerous without Divine aide, as well. Therefore, the Aztecs mostly left them in peace after the initial conquest.
The Tepanec were slowly recovering when a new disaster struck-- waves of corpses. At first (during the time of Aztec sacrifices) the bodies were few enough to deal with. But then the Aztecs were nearly blotted out, and their bodies also washed up on the shores of Azcapotzalco. It was harvest time, and the people were busy. The corpses rotted, foul winds spreading disease across the island. As children died in their parents' arms, the people hurled prayers at the sky with increasing desperation. Their cries converged on a single word-- take. Take the rotting bodies, take the crops dying in the fields. Take this hunger, take this pain, take my memory of the way my daughter begged when she died, take this unending stream of misfortune that has bathed our island for as long as anyone can remember.
Their prayers were answered. A new god stirred on the island. This god, Chaurn, had only one law: "I will accept whatever you wish, but do not take anything back." The plagues vanished almost overnight, offerings to the new lord of the Tepanec. The Tepanec now spread across several islands; the distance in a direct line between them (and only that particular distance) was "taken," making for most unusual geography.
Chaurn's avatars are seen most frequently at sea. Briefly. They function as passive creatures, but their appearance often inspires fearful humans to provoke them...
Chaurn's presence is best felt on land by absence, as befitting his nature. Rather than using an avatar, he generally sends human beings who gave themselves to the Taker. It's more common than you might think. The humans always carry some object marked with Chaurn's symbol. Occasionally these humans give the mind of an animal to the Taker, allowing it to serve as an Avatar, but this is rare and generalyl only happens if someone wishes to speak with Chaurn directly.
Elements and powers:
Chaurn does not wield traditional powers over the elements, or healing, or any of the other 'miracles' by which most deities makes their presence known. Rather, Chaurn exists to Take. Anything and everything can be dedicated to the Taker, from a plague to a criminal to a single feather to "my pain" to "my death." It is possible to give something to the Taker almost anywhere, but it is harder to attract Chaurn's attention in places where he is not normally invoked.
After Dedication, that which is dedicated will speedily be claimed by Chaurn (just how speedily is dependent on the scope of the "offering." "Claimed" might not involve the offering being removed from the world). He provides no recompense or blessing for taking what people value, and asks no payment or offering for removing what they hate and fear. But he never gives anything back... Sometimes he does use what (or who) he's been given, though.