Its one of the best black creatures to play in a zombie deck, and its a good card to play in midrange and recursion decks
You could check which one this particular checklist represented before deck building if you weren't playing with opaque sleeves
Cards in general from Alpha, Beta, and Unlimited found in grading-worthy condition are already exceedingly rare, so a copy of Magics most iconic card, from its first set that is in perfect condition is where the the hefty price-tag comes from.
David Semple's work stands out as a high point, with his art having a texture and style to it that looks vastly more appealing
The two complement each other as well, as when one is no good the other is likely to be welcome both against different decks and in different situations
And secondly, Ureni generates value as soon as they enter, and it only gets worse if they're allowed to attack