Rosaria, the Stately Fallen Angel (PRC1-EN016)

Cannot be Normal Summoned or Set. Must first be Special Summoned (from your hand) by banishing 2 Level 7 or higher Plant-Type monsters (one from your hand and one from your Graveyard). Once per turn, during your Main Phase: You can negate the effects of all other face-up cards currently on the field, until the End Phase.