鍵の秘密/Secrets of the Key

Instant -
Investigate. If this spell was cast from a graveyard, investigate twice instead. (To investigate, create a colorless Clue artifact token with "{2}, Sacrifice this artifact: Draw a card.") <CR>
Flashback {3}{U}

Instant -
Investigate. If this spell was cast from a graveyard, investigate twice instead. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") <CR>
Flashback {3}{U}