[Alneyan]

I hate C'tis with a passion, so I have no opinion on their Pretender. The serpent form seems adequate, but it has very few item slots under this form (and a strategic move of 1 only).

Still, I would say it is better than something like the Archmage (and the other human Pretenders not starting with any magic path); it will be more expensive than those Pretenders starting with one path, however. I guess that would make the Serpent King a better choice than the other human Pretenders for C'tis. Keep in mind I have never played C'tis however, so that's only speculation.