Urza's Ruinous Blast [Dominaria Prerelease Promos] Creature Set: Scourge Type: Creature —

Set: Scourge Type: Creature — Goblin Warrior Rarity: Uncommon Cost: {1}{R}{R} Goblin spells you cast cost {1} less to cast

where X is the number of colors among those creatures

Set: The Dark Type: Artifact Rarity: Uncommon Cost: {0} {T}

Set: Beta Edition Type: Instant Rarity: Common Cost: {X}{U} Counter target spell unless its controller pays {X}

Whenever a Mountain enters the battlefield under your control

Urza's Ruinous Blast [Dominaria Prerelease Promos] Creature Set: Scourge Type: Creature —Set: Dominaria Prerelease Promos Type: Legendary Sorcery Rarity: Rare Cost: {4}{W} (You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Exile all nonland permanents that aren't legendary. Centuries ago, one man's vengeance plunged the world into ice and darkness.