| 4/8/2016 |
You can cast Expose Evil with no targets if you only want to investigate. |
| 4/8/2016 |
If Expose Evil has at least one target and all of those targets become illegal, the spell doesn't resolve and you won't investigate. |
| 4/8/2016 |
The token is named Clue Token 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. |
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