Diplomacy of the Wastes

Oracle Text

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. If you control a Warrior, that player loses 2 life.

Card Rulings

11/24/2014 If you control a Warrior as Diplomacy of the Wastes resolves, the target opponent will lose 2 life even if that player didn’t discard a card (perhaps because they had no cards in hand).