Use marketplaces and proxies only when you understand condition, seller, fee, and return risk
Standard is full of graveyard interactions
(On the bottom left, all Final Fantasy cards say which video game they were inspired by)
Perhaps the biggest difference in terms of gameplay is in the way you battle
Unbanning an extremely powerful and controversial card like Jace, the Mind Sculptor has the potential to hurt the format as a whole over the long term, which could mean that the short-term gains from selling a lot of Masters 25 will be outweighed by an overall decline in the format if the metagame devolves to Jace decks verses anti-Jace decks
Modern-day iterations of these Dual Lands will have some type of drawback to using them, either by paying life for them to come into play untapped like the Shock lands, or more commonly, not having a basic land type associated with them