See, the problem here is that I can't really tell you no without harming some of the reputation in working on this project, because I REALLY don't want to shut down ideas. I want to foster them, and not be discouraging to those working in it, but ultimately I feel the direction to be really discordant. The resonance you are pitching is all mechanical and quite frankly, I dislike almost EVERY card you linked just then. I absolutely DESPISE looting.
There's the other side of this that I can find the a lot of the same things to say about other cards in green.
Archwing Dragon meets
Roaring Primadox, etc etc.
A lot of the cards you link aren't indicative of Red either, but are part of what they are. Spellshapers and cycles. Red is moving into a new area when it comes to gaining cards,
Act on Impulse, which makes the hand choice so much stranger.
In dealing with the zones, I don't want it to care about the flux of that zone. Looting would be terrible for the hand because you don't actually get any net gain, you don't grow your hand so you effectively don't DO anything that influences it.
As to the sphinxes, you have to look at the flavor of this. U/R represents the Cosmos and all the secrets there of. U/G represents the World, which, yes, has huge secrets of its own, but ultimately I feel like it is less resonant than the boundless mysteries of the cosmos.
Bringing white into this also has absolutely no bearing because the sphinxes wouldn't have white either, and the friend of a friend doesn't make it a friend itself. I could say that red is friends with black, which Alara had plenty of splashed with, so making red the secondary color is just as viable a choice as green.
I really do want suggestions and comments and for people to have fun doing this, but don't try to
convince me if I shoot an idea down. You put me in a really awkward position...