Void Extrapolator (FRA)

Creature — Aetherborn Warlock // Sorcery

This creature enters prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.) Threshold — This creature gets +1/+1 as long as there are seven or more cards in your graveyard. Mill three cards. (Put the top three cards of your library into your graveyard.)

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