Nice writeup!
Aether Mage is already psuedo-viable. Looks like it will be really strong with S1. Same with Intense Training.
I ended up playing with the pre-built decks for the most part, but I did try out a Legendary Swarm deck with ~25 Legendary cards just because I could.
RE: [Gods Unchained] Content Creator Playtest - My Experience & Some Deck Ideas!