Monstrous Vortex

Whenever you cast a creature spell with power 5 or greater, discover X, where X is that spell's mana value. (Exile cards from the top of your library until you exile a nonland card with that mana value or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Siempre que lances un hechizo de criatura con fuerza de 5 o más, descubre X, donde X es el valor de maná de ese hechizo.