choose a card in your hand. Defending player guesses whether that card's mana value is greater than the number of artifacts you control. If they guessed wrong, you may cast it without paying its mana cost. If you don't cast a spell this way, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")
Near Mint - $0.10
Lightly Played - $0.10
Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
Near Mint Non-English - $0.10
Lightly Played Non-English - $0.10
Played Non-English - $0.10
Heavily Played Non-English - $0.10
Damaged Non-English - $0.10
Foil Prices
Near Mint Foil - $0.30
Lightly Played Foil - $0.30
Played Foil - $0.20
Heavily Played Foil - $0.20
Damaged Foil - $0.20
Near Mint Foil Non-English - $0.30
Lightly Played Foil Non-English - $0.30
Played Foil Non-English - $0.20
Heavily Played Foil Non-English - $0.20
Damaged Foil Non-English - $0.20