The once banned Worldgorger Dragon combo is infamous for its knack of causing games to end in a draw. Normally, the deck aims to reanimate Worldgorger Dragon with one of its Aura reanimation cards. Once he hits play, the dragon removes the aura enchanting it from the game, along with all your lands. Because the Aura leaves play, Dragon dies. Because dragon dies, your lands come back untapped. The aura also comes back, and can reanimate your dragon again. Doing this over and over again can cause Piranha Marsh to deal infinite damage to your opponent. This interaction also gives you infinite mana, which means Duskmantle, House of Shadow can mill your opponent to death. On a final resolution of your aura coming back into play you can also reanimate Scholar of Athreos or Oona, Queen of the Fae and combine your infinite mana with their activated abilities for a fancy win.