Urza, Lord Protector [The Brothers' War Prerelease Promos] Artifact Creature — Artifact Creature When Mysterious Stranger enters the

When Mysterious Stranger enters the battlefield

each player exiles cards from the top of their library until they exile a nonland card

that player loses the game

(They can't look it up or ask for help as this ability is resolving

Commander decks are ready to play right out of the box and contain everything you need to play Magic's most popular multiplayer format

Urza, Lord Protector [The Brothers' War Prerelease Promos] Artifact Creature — Artifact Creature When Mysterious Stranger enters theSet: The Brothers' War Prerelease Promos Type: Legendary Creature Human Artificer Rarity: Mythic Cost: {1}{W}{U} Artifact, instant, and sorcery spells you cast cost {1} less to cast. {7}: If you both own and control Urza, Lord Protector and an artifact named The Mightstone and Weakstone, exile them, then meld them into Urza, Planeswalker. Activate only as a sorcery.