Sobrevivir a la noche

Text:

La criatura objetivo obtiene +1/+0 y gana la habilidad de indestructible hasta el final del turno. (El daño y los efectos que dicen "destruir" no la destruyen.)
Investiga. (Pon en el campo de batalla una ficha de artefacto Pista incolora con ", sacrificar este artefacto: Roba una carta".)

Rulings:

• 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 <img src="/Handlers/Image.ashx?size=small&amp;name=2&amp;type=symbol" alt="2" align="absbottom" /> 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 doesn’t resolve and you won’t investigate.