Dark Confidant - [Foil] Ravnica: City of Guilds (RAV) Showcase you may exchange control of

you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls with an equal or lesser mana value

Flashback {4}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost

the Boundless enters the battlefield

each opponent loses life equal to the life that player lost this turn

and is a black Zombie

Dark Confidant - [Foil] Ravnica: City of Guilds (RAV) Showcase you may exchange control ofAt the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its mana value. Greatness, at any cost.