If you want all the flashiest cards from the set, read on: 1
Storage sanity: Deck boxes, binders, toploaders, and storage cases are built around standard trading card dimensions
The stat boost is nice, but in decks that move cards out of the graveyard frequently, it'll create more Skeleton tokens for you to use
While that balance has shifted over the years (along with plenty of other archetype-defining cards that have come and gone), Mana Drain continues to find ways to make control viable, despite how intense of competition it faces
The only way to become the monarch, other than dealing damage to an existing monarch, is to play any of the cards that state you become the monarch like Thorn of the Black Rose or Crown-Hunter Hireling