追根究底 (CT Root Out)

巫術    (CMC:3)

消滅目標神器或結界。 探查。（將一個無色線索衍生神器放進戰場，且其具有「，犧牲此神器：抽一張牌。」）

224 SOI • CTDaniel Ljunggren

™ & © 1993—2016 Wizards of the Coast

Notes: TODO: Update Copyright

Legal in: Modern,Shadows over Innistrad Block,Legacy,Vintage,Commander

Oracle Text (click to copy):

Root Out {2}{G} Sorcery Destroy target artifact or enchantment. Investigate. (Put a colorless Clue artifact token onto the battlefield with "{2}, Sacrifice this artifact: Draw a card.")

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4/8/2016
The token is named Clue and has the artifact subtype Clue. Clue isn’t a creature type.
4/8/2016
The tokens are normal artifacts. For example, they can be sacrificed to cast Angelic Purge or targeted by Root Out.
4/8/2016
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.
4/8/2016
You can’t cast a spell without choosing legal targets. If all of those targets become illegal, the spell is countered and you won’t investigate.

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Card Root Out is not on TCGPlayer.