• Xyz Monsters are completely immune to destruction by this card's effect, as they do not have levels to begin with.
  • You can retrieve multiple copies of this card that were discarded to activate its monster effect using "Recurring Nightmare".
  • If you have both this card and "D/D Savant Kepler" in your hand, instead of placing them in the Pendulum Zone, you can consider Normal Summoning "D/D Savant Kepler" to add a Dark Contract to your hand, then discard this card to add "D/D Savant Kepler" back to your hand in order to add a second Dark Contract to your hand next turn.

Traditional Format

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