I have questions
1.If Thunderfang did become a Source Dragon, would he be the weakest one?
2.If a Source Dragon dies, do they go to spectral lands first?
3.Did Aspheera learn her magic from Mysterium scrolls?

I have few questions: 1.Do Source Dragons go to Spectral lands after death? 2.We saw glowing orb when Thunderfang ate Morro, does that mean it master Wu or just Morro? 3.Will we ever see the Administrator?

This will be me if he does include harumi

So intresting question, we know one of Source Dragons was killed. So doesnt that mean morro saw that source dragon

Yes she is!