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.
"Our emissaries are gifted negotiators."n—Alesha, Who Smiles at Death
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).
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.