The Great Juggernaut is a rare Legendary Artifact Creature — Juggernaut card from Unknown Event (UNK), collector number RR04b.
At the beginning of your upkeep, sacrifice The Great Juggernaut unless you discard a card. Whenever The Great Juggernaut attacks, shuffle your library then exile the top card of your library. You may play that card without paying its mana cost this turn.