I wonder if necromancers or the undead could mess with the death curse on the treasure.

The fomor servitors are not the sharpest tools in the box, so they could be used to bring cursed treasure into the fomor court.

We all have heard about the epic curse on a dragon treasure pile. What if before hand, you gave the dragon a prepared item to add to his collection? If set up right, could it allow a way to get access to the treasure without risk of the curse?

It could be part of the reason the order found it so easy to regain the coins.

I have this idea that the dar hollow ritual could be adapted to use BCV or even ghouls as a power source. We know it is said Dracula failed when he created the BCV, so this adapted ritual could be a success. To make it as powerful as possible, it would require the sacrifice of the remaining BCV elders. If BCV can be affected by necromancy, I guessed they could be a fuel source, in necromancy violent deaths and older bodies work the best, so the elders are perfect.

Those summoning spells would only be useful if you have the sigils and names of all the coins, and those spells would be angelic lore. So only the fallen would be aware of them. So nic would not be the only one capable, any of his order. I assumed him due to him being large and Incharge.

I always figured that nicodemus was capable of summoning unprotected/un hosted coins when needed. His angelic/hellfire as a key component to the spell.

Unless he has an emergency sanctum, set up to summon him back if he is at mortal peril during day light.

If Harry can use McCoy staff, could he also use his sword? He was warden commander, so likely he has his service sword, possibly more than one. I could see McCoy making his own sword for his Blackstaff duties.