Brain in a Jar (SOI) from Shadows over Innistrad, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Daniel Ljunggren
• Card Text:
  1, T: Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery card with converted mana cost equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost.
  3, T, Remove X charge counters from Brain in a Jar: Scry X.