In the same vein, Color Spray and Sleep.
Though to be honest, they're not good at lvl 10, in difference from Entangle which still can be annoying.
I'm with you on the Metamagic Enervation.
For a 9th level slot you gain a twinned enervation basically, with Energy Drain.
Energy Drains gravy, the increased lasting time and the chance for actual Drain, are pretty irrelevant since you probably won't survive the encounter where you got them in the first place.
Now, to mimic this, a Twinned Enervation. That's level 8.
Arcane Thesis and Incantatrix, it's lvl 6.
Sorcerer with easy/practical (can't remember which one, might be both..the one not from a Dragon magazine). lvl 5.
Hell, let's split the ray... lvl 6.
Enervation-spam isn't fun. Not in the long run atleast.
I would call both Freedom of Movement and Windwall, if not broken, at least unfair.
You have to devote your entire build to making a good Archer or grappler, and then the Caster negates your entire point with one spell.
Not "makes it hard for you to do what you are meant to", outright, stonewall, stops you. This is in no way fair or cool.
Freedom of Movement giving +20 to avoid being grappled is fine. Heck, +40 would be okay, if less than fair. Outright preventing grappling is, as my buddy Kantolin says, a "You must be this tall to ride" feature, and really rather stupid/annoying.
I think the Force enhancment to a bow negates Wind Wall, but I'm not sure.
And regarding infinite wealth.
An idea I've had spinning in the back of my head for quite some time now would be som kind of Inevitable that hunted down individuals that destabilize the economy. Since that only leads to everybody getting poorer except him/her, I could see it as an Evil act.
Or maybe even some secret society of people with these ideals.
"Sure, go ahead, make the cow into salt and sell it"
You're gonna regret it though