Artwork unavailableEnglish Oracle text
Put target permanent on top of its owner's library.
Investigate. (Create a Clue token. It's an artifact with "
, Sacrifice this token: Draw a card.")
「行方不明者は、消息不明なままの方がマシなこともある。」 ――ヘイヴングルの市長、ヘルザグパーマネント１つを対象とし、それをオーナーのライブラリーの一番上に置く。
調査を行う。（「, このアーティファクトを生け贄に捧げる：カードを１枚引く。」を持つ無色の手掛かり・アーティファクト・トークンを１つ戦場に出す。）
You can't cast a spell without choosing legal targets. If all of those targets become illegal, the spell doesn't resolve and you won't investigate.
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.
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.
Legality follows the dated Scryfall catalog snapshot.
For draft and prerelease, check the event’s release and rules. Missing statuses stay unavailable.
Official Magic rules| Format | Status |
|---|---|
| Standard | Not legal |
| Pioneer | Legal |
| Modern | Legal |
| Legacy | Legal |
| Vintage | Legal |
| Commander | Legal |
| Oathbreaker | Legal |
| Alchemy | Not legal |
| Historic | Not legal |
| Brawl | Not legal |
| Comp. Brawl | Not legal |
| Timeless | Not legal |
| Pauper | Legal |
| Duel | Legal |
For draft and prerelease, check the event’s release and rules.
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