Astucia

Criatura — Encarnación elemental 6/6, 3UUU (6)
La Astucia no puede ser bloqueada excepto por tres o más criaturas.
Si un hechizo o habilidad que controlas fuera a contrarrestar un hechizo, en vez de eso, remueve del juego ese hechizo y puedes jugar esa carta sin pagar su coste de maná.
Cuando la Astucia vaya a un cementerio desde cualquier parte, barájala en la biblioteca de su propietario.
Illus. Zoltan Boros & Gabor Szikszai

Creature - Elemental Incarnation
Guile can't be blocked except by three or more creatures.
If a spell or ability you control would counter a spell, instead remove that spell from the game and you may play that card without paying its mana cost.
When Guile is put into a graveyard from anywhere, shuffle it into its owner's library.¹

Crystal Keep Rulings Summaries

• With the second ability, you get to play that spell immediately even if it normally would not be legal to play that spell at the current time. [D'Angelo 2007/11/09]
• The last ability is different from a "goes to the graveyard from play" ability in that it triggers after it is in the graveyar and not as it leaves play. This means that if it lost the ability while in play, it would still trigger, but if it loses its ability in the graveyard (as with Yixlid Jailer) that it won't trigger. [Lorwyn FAQ 2007/09/25]

Format Legality	Legal in Vintage, Legacy, Extended, Standard
Printings (1/9)	Lorwyn (Rare)