The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Urza's Saga Promos Set: Media Promos Type: Legendary

Set: Media Promos Type: Legendary Planeswalker — Jace Rarity: Mythic Cost: {1}{U}{U} +2: Each player draws a card

{X}{U/B}: Choose a color

Set: Wizards of the Coast: Black Star Promos Type: Lightning Rarity: Black Star Promo Retreat cost: Colorless

Whenever you cast a legendary spell

" —The Biblioplex: An Introduction

The Mightstone and Weakstone [The Brothers' War Prerelease Promos] Urza's Saga Promos Set: Media Promos Type: LegendarySet: The Brothers' War Prerelease Promos Type: Legendary Artifact Powerstone Rarity: Rare Cost: {5} When The Mightstone and Weakstone enters the battlefield, choose one Draw two cards. Target creature gets 5 5 until end of turn. {T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells. (Melds with Urza, Lord Protector.)