Older foils and special foil treatments can be worth much more, but modern regular foils are not always significantly more expensive than non-foils
Urzas Cave is again less relevant in EDH than in Modern, where the land subtype is much more relevant
However, this build offers the potential to turn Zur into a creature-focused deck, similar to the way Yisan, the Wanderer BardYisan, the Wanderer Bard is built, though with some obvious and significant differences
I would say eight times out of ten, searching your library for a Dragon is going to be better than simply getting one back from the graveyard
To my knowledge, the first official warning about counterfeit magic cards was issued in January 1994 as Peter Adkinson informed the community about fake cards and tampered booster packs
This card may retain value simply because of how famous that meme picture became