Artefacto
Los permanentes que controlas tienen la habilidad de rebatir

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Al comienzo de tu paso final, muele dos cartas, luego exilia una carta que no sea tierra al azar de tu cementerio. Cópiala. Puedes lanzar la copia sin pagar su coste de maná. (Un hechizo de permanente lanzado de esta manera se convierte en una ficha.)
If you cast a spell “without paying its mana cost,” you can’t pay any alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, you must pay those.
The card remains exiled no matter what happens to the copy.
If you don’t cast the copy (perhaps because there are no legal targets available or you don’t want to), the copy will cease to exist.
If the copy has
in its mana cost, you must choose 0 as the value of X.