There is indeed a tainted wisdom at work. The one that included this in Duel Links. I keep seeing it at card trader and, since some of his cards have themes, wondered if there was something with Labyrinth of Nightmare that I was missing. No. The only small value I can see is running down the opponent's clock responding to triggers when he is deciding to activate a facedown.
This card is bad even for low-rated duels. Even if it shuffled the deck upon Summon you'd have nothing to do with it until we get Dante in like 3 years.
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