Cunning Rhetoric (CMM) #864 [EN/N] s/o

{2}{B} · Enchantment · Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it. · Illustrated by Chris Rallis · Commander Masters #864 · EDHREC rank 2592 · Magic: The Gathering, MTG