Before I run, that's a good start Llama, I like it. For some reason though, I'd have to disagree on the wyrm. To me, it almost seems as if it more belongs as a summon, and LESS as a pretender.
Somehow a being that lacks magic (of course, most people put SOMETHING on their wyrm, for buffs anyhow), doesn't seem very awe inspiring or worship-worthy. If the wyrm and the coatl traded places, it would make plenty of sense. But, just making the wyrm into a summons (and letting it stay as a pretender option) would be fine also.
