Don't like Phoenix curveball change, because it's meant to be ambidextrous on both sides because it curves. If you have a left handed person with a left handed mouse, it could make it very uncomfortable, and fixes to that would lead to some exploits.I think that replacing his wall is the best idea. For his molly, I think they could add impact damage when it falls, and make the molly able to go further. This would allow Phx some post plant util and better corner clearing with his molly, because then it's more burst damage, but then again it could make it too viable during a gunfight.
2-3 is a huge change for reyna orb, because that's the usual max amount of kills you would get per round, the only way to get use out of 4 orbs is by getting an ace(but with assists counting), and that's not common, but 3k's are really common. I think this would be a great idea though, I just think that changing reyna blind is a bad idea, focusing on one ability will allow for more stable balancing.
Yoru is fine imo.
Jett, I think this is fine as well imo.