Magnifying Glass 
Text:
: Add {C}.
,
: Investigate. (Create a Clue token. It's an artifact with "
, Sacrifice this artifact: Draw a card.")
Rulings:
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4/8/2016
The token is named Clue and has the artifact subtype Clue. Clue isn’t a creature type.
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4/8/2016
The tokens are normal artifacts. For example, they can be sacrificed to cast Angelic Purge or targeted by Root Out.
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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 <img src="/Handlers/Image.ashx?size=small&name=2&type=symbol" alt="2" align="absbottom" /> and sacrifice it to draw a card.
Legality:
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standard: Not legal
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future: Not legal
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historic: Legal
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pioneer: Legal
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modern: Legal
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legacy: Legal
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pauper: Legal
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vintage: Legal
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penny: Legal
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commander: Legal
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brawl: Not legal
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duel: Legal
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oldschool: Not legal
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gladiator: Legal
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premodern: Not legal
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historicbrawl: Legal
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paupercommander: Legal
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alchemy: Not legal
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explorer: Legal
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predh: Not legal
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oathbreaker: Legal