Remorseless Punishment [Oath of the Gatewatch]

Set: Oath of the Gatewatch Type: Sorcery Rare Cost: {3}{B}{B} Target opponent loses 5 life unless that player discards two cards or sacrifices a creature or planeswalker. Repeat this process once. "I have suffered a thousand lifetimes of agony on this wretched world. I've far less time to share with you, but I assure you, no less pain." —Ob Nixilis