Confront the Unknown (SOI) from Shadows over Innistrad, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Kev Walker
• Card Text:
  Investigate, then target creature gets +1/+1 until end of turn for each Clue you control. (To investigate, put a colorless Clue artifact token onto the battlefield with "2, Sacrifice this artifact: Draw a card.")