Nice artwork and card crafting.
I find it interesting that you would allow any hero to wear more than one amulet (and receive its magical effects). If they were small charms on a chain, then yeah... "They're always after me lucky charms!" But the images always seemed to make them out to be big honking disks. If you would let a hero wear two rings on one finger (like my wife does) then why not? But most people draw the line somewhere between one ring per finger and one ring per hand. And two rings per finger is not even a topic of general discussion and so to I had thought two amulets would not be allowed.
If the Amulet of Lore is used, restoring lost mind points, it might also stand to reason that the chaos spell is not gained either? i.e. I'm actually CURSED and I REALLY need those mind points back. If I wear a second magic amulet of basically equal power, then neither one is allowed to function correctly. No spell for you!
Also there is a discussion somewhere about mind points (initial) being related to number of spell groups. So if you dropped two mind points before the quest starts, you could arguably memorize only one spell group as the Wizard! I also think you should allow the Barbarian to wear it and inadvertently kill himself.

Also interesting that EWP must divulge which Chaos spells he will be using (if any) at the start of the quest. Or even the existence of Chaos spells the players have yet to encounter. Perhaps a random draw by EWP from behind the screen would be preferable, dealt face down from the remaining spells after setup such that EWP does not know which one it is?
cool topic!
Has resigned from the forum and would delete his account if he could.