Legendary Artifact
At the beginning of your upkeep, investigate. (Create a Clue token. It's an artifact with "
, Sacrifice this artifact: Draw a card.")
, Sacrifice three Clues: Search your library for a card, put that card into your hand, then shuffle.
If you sacrifice a Clue for another card's cost or effect, such as that of Angelic Purge or Tamiyo's Journal, you can't also pay and sacrifice it to draw a card.