A) When looking for other things I've found a few interesting statements on Russian forum. It seems that reward for Blessing the Crypts quest depends on class of hero. If you are warrior or mage then you will get reward for the quest and that is all. If you are paladin you will get reward AND Furious Paladin will have new / additional units / items to buy. I wonder how many more class dependent quests are here?

B) I've found myself that every time you are leaving and entering Marshan Swamp it causes some change on item you will get from fight with Zombie Norik. By leaving / entering I could get 8 different items - i tested this for over 100 relocations which were done in a row. According to Russian forum these item changes can be caused also by picking troops from graves - but I have not checked it and I do not know if you could get any new item past 8.

C) In first area, Training Center, I've found that you are able to activate / "pick up" one of skeletons in chamber with dragon, but it is not easy as probably only a few single pixels work here. Also, in the same room there is probably unpickable pile of gold which is positioned IN the ground - I was trying to pick it for many hours with no positive result. If you are interested I could post some screenshots.