I've seen challenges of this done, so I decided to make a ruleset for what I would do.
Rules
1.Start off with one queen. Fan tribe or canon tribe.
2. Every time you invite a wanderer, use console to give the wanderer traits of the tribe who invited them in.
3.Animus dragons. Everybody wants them. To get one, roll a number generator between 1 and 100. 1 would mean the dragon is an animus. Limit of 2 animus dragons per generation.
4. Hybrids have to be rare. No hybrids as rulers. Use a generator 1-20, and 1-4 means the hybrid's parents can breed.
5. If a dragon is able to have abilities unique to their tribe, but not all dragons in their tribe have it, roll a generator between 1-10. 1 means the dragon has the power. For mind-reading/future-seeing, use the same rules as animus dragons, but with a limit of 5.
Age Settings
Baby:5
Child:5
Teen: 15
Adult:80
Pregancy:20
Everything else is up to you. If you would like to make suggestions to add, feel free to do so.