Blighted Nightmare

When this enchantment enters, creature cards in your graveyard perpetually get +1/+1. Blight X, Return this enchantment to its owner's hand: Return target creature card with mana value X or less from your graveyard to the battlefield. X can't be greater than the greatest toughness among creatures you control. Activate

only as a sorcery.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ootkhi761pb1hfmzl6y6y.