User blog comment:RemosPendragon/Canon policy: Gods part 2½/@comment-25252114-20141123220551

For the C'tan, if the Author decides to use a full C'tan rather than Shards or a Transceded C'tan a Rule about keeping its power below that of the Void Dragon and the Nightbringer might help. Since if I remember correctly those two were among the most powerful C'tan.