Negate [The List] Rivals of Ixalan finding the Rainbow Vale was

finding the Rainbow Vale was often the goal of Knights' quests

Goblins Type: Instant Rarity: Rare Cost: {3}{U}{U} You may exile a blue card from your hand rather than pay this spell's mana cost

Set: Arabian Nights Type: Artifact Rarity: Rare Cost: {4} {1}

Set: Core Set 2019 Prerelease Promos Type: Enchantment Rarity: Mythic Cost: {7}{U}{U}{U} You may cast spells from your hand without paying their mana costs

rukhs are thought to descend from a phoenix that sacrificed its flame for a body of stone

Negate [The List] Rivals of Ixalan finding the Rainbow Vale wasSet: The List Type: Instant Rarity: Rare Cost: {1}{U} Counter target noncreature spell.