"Of course! It was all so obvious. I should have made the connection days ago."
—Alquist Proft, case notes

„Natürlich! Es war alles so offensichtlich. Ich hätte die Verbindung schon vor Tagen erkennen müssen."
—Alquist Proft, Fallnotizen

Schlussfolgern

Ziehe eine Karte. Stelle Nachforschungen an.

"¡Pues claro! Lo tenía delante de las narices. Hace días que debí dar con la solución".
—Alquist Proft, notas sobre el caso

Deducir

« Bien sûr ! C'était l'évidence même. Voilà des jours que j'aurais dû faire ce lien. »
—Alquist Proft, notes sur l'affaire

Déduire

"Ma certo! Era ovvio. Avrei dovuto mettere insieme i pezzi giorni fa."
—Alquist Proft, note sul caso

Dedurre

「そのとおり！すべては目の前にあった。もっと前にこれに気づくべきだったんだ。」
――アルキスト・プロフトの事件簿

推理

カード１枚を引く。調査を行う。

"É claro! Tudo era tão óbvio. Eu deveria ter feito a conexão dias atrás."
— Alquist Proft, notas do caso

Deduzir

「就该如此！这都再明显不过了。我几天前就该把它们都串起来。」
～阿奎斯波费，探案笔记

常理推断

Deduce

Draw a card. Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Proft lit up like a man who had just been handed a glorious and unexpected gift. "I know who's responsible for this," he said. "And I can prove it."

Murders at Karlov Manor

Draw a card. Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Clue is an artifact type. Even though it appears on some cards with other permanent types, it's never a creature type, a land type, or anything but an artifact type.

If an effect refers to a Clue, it means any Clue artifact, not just a Clue artifact token. For example, you can sacrifice Wrench to pay for Alquist Proft, Master Sleuth's activated ability.

Some abilities trigger "whenever you sacrifice a Clue". Those abilities trigger whenever you sacrifice a Clue for any reason, not just to activate a Clue's activated ability.

Some spells and abilities that investigate may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't create any Clue tokens.

You can't sacrifice a Clue to pay multiple costs. For example, you can't sacrifice a Clue token to activate its own ability and also to activate Alquist Proft, Master Sleuth's ability.