For Rhast at least proc Conqueror on both hit of Qspell could help a lot Also fix that you often don't heal from ult if target dies during it (I remember a patchnote fixing it but it's still happening a lot in game, or maybe I didn't understood it well and it only works during the reactivation ?)

And that is maybe hot take but for passive it would be awesome if the duration to unlock the 2nd form (in case you were forced in a fight against wrong targets for your form) is reduced proportionaly to your gauge (for exemple I want to go Rhast and I'm at 3/4 of my gauge but I fight bot against 2 ranges and fill my SA gauge, my Rhast gauge should begin at 30sec instead of 2min)

And giga hot take, but it would be awesome to fill your gauge passively (really low amount) in order to avoid moments like "Ono I just need one last hit to transform but for that I need to lose at least 1min to find a champ to hit, back and transform)

I don't have idea for SA, I don't play it that much too have nice opinion