There is nothing on the ground in the well cave. There are a couple malachite veins there, but it is much easier to get to them before triggering the cutscene with Zagan than afterwards.
Prove that. I want screenshots.
I have gone there and deliberately LOOKED specifically for Malachite Veins in the High Hall well cave and I didn't find any at all.
For the fight with General Raze, I think it's best to get him to 60% health or so before shutting off both levers. Otherwise, you need to do a lot of damage to him in the short time before they come back up.
