Magical Hack [International Collectors' Edition] Karn put one of those cards

put one of those cards on top of your library and the rest on the bottom of your library in any order

Set: Beta Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one color word with another

Set: Antiquities Type: Artifact Rarity: Uncommon Cost: {2} {2}

Set: War of the Spark Promos Type: Legendary Planeswalker — Ugin Rarity: Rare Cost: {6} Colorless spells you cast cost {2} less to cast

{1}{B}: Regenerate Ink-Eyes

Magical Hack [International Collectors' Edition] Karn put one of those cardsSet: International Collectors' Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another. (For example, you may change "swampwalk" to "plainswalk." This effect lasts indefinitely.)