This deck is very simple and straight forward. The game-plan is to essentially draw your whole deck on one turn and win with Exodia. For newer or returning players, I'll lay out the function of the Numeron Engine.
Your Numeron engine includes the cards Numeron Wall, Numeron Network, Numeron Calling, and your Number Gate monsters. You want to use Numeron Wall to activate Numeron Network directly from the deck. You use the Numeron Network effect to activate Numeron Calling, which will summon your 4 Number Gate monsters from the Extra Deck. At this point, if you have Memories of Hope in your hand, you can use it to Draw 4 cards. Either way, you will then use the Number Gate monsters to make Saryuja Skull Dread and activate its effect to draw 4 cards.
Called By The Grave is necessary as it gives you protection from cards like Ash Blossom & Joyous Spring or Droll & Lock Bird which can stop your FTK Strategy.