With the loss of Voltaic Key and Tolarian Academy, the Monolith went on to just be an amazing card that powered a lot of different artifact decks over the next few years
Instead, its a complex and, honestly, kind of ridiculous process involving burning cards, cooldown periods, and a new currency
Dragons and goblins get the majority of search effects, with generic red tutors being few and far between
The card allows its owner to banish up to two Spell or Trap cards from either player's graveyard while inflicting 200 damage to their opponent for each card
This is probably not the case with super technical tools, but just by looking and feeling, they seem to be the same size
The change is purely for visual purposes, and everything, including abilities and stats, will still work the same way