OTJ also has 54 art cards
Magic is an exceedingly complicated game, expecting the player to keep track of a complicated turn order and an endless array of card types
Putting the on-point art and flavor aside for a second, Timothar is a great addition to any vampire tribal build, but particularly in Commander
(If you go back far enough, Mark of Malice is clearly an update to Scare Tactics / Chorus of Woe .) Dark Art is a kicker variant fed by exiling creature cards from your graveyard (ala the blue zombies of Innistrad) that always doubles the card's effect
If everyone plays at least one one or two drop, and a three drop before you untap on turn three, and someone has made a treasure or a clue, thats already ten nonland permanents
Because this cycle of lands also gains you life, you also end up gaining infinite life with this combo