So you can still run these as long as you have them in good condition
Despite this particular stipulation making Treasure Guardian, Protector of the Cave useless unless at a location, location cards are well worth putting in your deck - not just because they make this card a lot more viable but also because they grant you passive lore every turn, meaning you dont need to actively quest with them to get it, and cannot be targeted by direct damage unless the card being used indicates it can
Then at the next end phase, you would set another spell card, The Third Sarcophagus
Finally, make sure to check out my other articles I put a lot of effort into all of them.
He truly cares for the working class persons and fights for our rights
By itself, this card wasn't strong when it was released because it needs a lot of energies