It worked by playing lots of mana acceleration, rushing out Lich, pitching Autochthon Wurm to Nourishing Shoal and drawing lots of cards, playing Zuran Orb and sacrificing all of its own lands to draw some more cards, and hopefully drawing into enough mana acceleration to drop a win condition
This video also gives you a look at the cards, and additionally shares a lot of behind-the-scenes information
Most-Played Cards from Magic: The Gathering FINAL FANTASY Standard's existing card pool set a high bar, but Magic: The Gathering FINAL FANTASY still made its mark, strengthening established archetypes and introducing powerful new build-arounds
Impulse draw is exiling a card and then being able to cast it for a short duration of time
You can literally dredge large numbers of cards into your graveyard every turn for zero mana but even if you dont want to tap out resources each turn filling your yard, the threat of doing it at instant speed should have every potential attacker thinking twice before tangling with the Wreath