Due to the card's history and popular illustration/design, good condition copies of the card are valued highly, and it was popular enough to earn a reprint in the more recent Celebrations set
You get the artifact creature master with Urza, Chief Artificer, the gargantuan The Capitoline Triad, who fuels historic synergies and encourages you to play massive artifacts, and then Imskir Iron-Eater keeps your artifacts going with a strong draw effect when it comes into play
The Avacyn player might have been a little annoyed that I hit my Hulk and won off of it
Murders at Karlov Manor was designed and balanced with Play Boosters in mind
This means you can only have one of that Planeswalker card out on the battlefield at the same time, just like any other legendary permanent
Despite the existence of graveyard hate cards like Rest In Peace, reanimate decks, better encapsulated as "graveyard matters" decks in the modern age, continue to appear in the meta across every format