https://mtgpq.info/cards/WandOfVertebrae
So I haven’t done a lot of testing on it (had it as a filler in my TDW deck), but what I saw looks like it isn’t working correctly. It says you should be pulling a card out of your graveyard when it loses a shield, however I was noticing cards appearing in my hand when treasures were getting popped. I also specifically saw it lose a shield once and not give me a card, though I don’t know if my graveyard was empty. Looked kind of like it was triggering when anything except itself was losing shields really.
/Edited title - Daiane