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Here's an article published on Hipsters of the Coast about a 107-minute MTG Arena game. The core idea is, one player was playing a deck that had no win condition except 4 Teferi, Hero of Dominaria. The deck wins by first getting Teferi to its ultimate, cast some spells to exile all the opponent's permanents, and then use Teferi's -3 to put itself back to the library. Since the opponent can't cast spells, they'll eventually draw their entire library and lose.
At least, that's the plan. In this particular game, the opponent countered or killed all four Teferi. That leaves the player with no way to win. However, he's still able to loop Nexus of Fate to take all the turns and never lose either.
Question: if this happens in paper Magic, is the game drawn?