White sounds like Winter, but golden-white does not.  There was a combination of powers getting used in that scene, and I don't doubt that some of it was WK related.  But the golden light seems like something else.

Harry is now the chosen Champion of the golden calf from Exodus. The BAT culminates in a fist fight between Harry and Moses.

Higher Power, or Harry Power.

It was either an infusion of WG, or Starborn "energy" (whatever that is). Any other explanation is a huge stretch IMO.

The powerful always use minions even if they can just solve the problem by pointing a finger. For some reason using minions is as it should be. 

Well, I agree that something used "minions" there. But I do think Namshiel was the one who used Hellfire, and likely thought he was a valued member of the team at the time. "Minion" is a relative term, after all.

We know that in the DV, conservation of matter/energy still applies (though extended to the Nevernever, in some cases).

So, if we're dealing with MAGIC, I don't see why forms of energy shouldn't be interchangeable. We're already talking about forces that don't obey the laws of physics as we know them. Trying to apply standard Newtonian physics to magic rings seems kinda silly to me.

If you wanted to try to apply real physics to the DV, the energy Harry harnessed for his gravity spell at CI is astronomically large, for example.

Having a decent grasp of the math involved in this stuff, I'm very content to just say "it's magic". Otherwise, you'll drive yourself crazy trying to figure it all out  .

They probably were. Read enough history and you will see 

I won't argue with the moral judgement here, but if that's the case, doesn't that force you into a place where you're just a victim of what is inevitably a corrupt establishment?

I don't want to dispute it, that just seems like a rather depressing worldview to me...

Which suggest that having a strong knight like Harry is at best unnessasary and at worst dangerous under normal conditions. Mab clearly did not care what kind of knight Maeve hired and after she finds out that Maeve hired a weak knight she did not intervened.

If this is true, what will happened when Harry is done doing Mab's bidding? When all the problem is solved and the situation is back to normal, will Mab consider Harry to dangerous to live? What do you do to your soldiers when the war is over and there is no enemy to fight anymore? What do you do to the only member of your court that you are vulnarable to?

Oh, Crap!

She hadn't intervened with previous WKs because at the time, they were adequate. Not anything Mab could use for important things, but enough to fill the "enforcer of Winter interests" role in the mortal world. I'd guess in the last few centuries, the Knights have mostly been killing mortals and low-tier supernatural beings that happen to be doing things that conflict with Winter's interests.

Harry, on the other hand, is an exceptionally strong wizard, a fairly good detective, AND a Starborn. Mab knew that Nemesis had infiltrated the Winter Court to a shocking degree. Her two most valuable assets in the Court were corrupted, and only one could really be saved. The time for thugs was over, and Mab wanted a Knight that could actually use the mantle to aid Winter in the real battle.

As for when it's all over? I'm in the camp that believes Mab (the individual we know now) won't make it through the BAT. A certain young lady will be filling those shoes, IMO....

But even if Mab survives, why would that change anything? If Harry proves to be so valuable that he survives and helps Winter through what is shaping up to be a supernatural apocalypse, I think he'll be in a good position to re-negotiate his contract .

Assuming Harry makes it through everything and is still the WK at the end, I see him taking on a role more like Kringle in the Winter Court. Taking care of the real important stuff, respected by all the Fae, and not really bothered by obligations unless it's really important. (I do think Molly....er, "Mab", will have a hand in that...).

That kind of skeeves me out.   

As it should