Sleight of Mind [Unlimited Edition] Phyrexian Dreadnought Set: Fourth Edition Type: Sorcery

Set: Fourth Edition Type: Sorcery Rarity: Rare Cost: {3}{W} Destroy all lands

Set: Alpha Edition Type: Instant Rarity: Uncommon Cost: {W} Exile target creature

Set: Mirage Type: Instant Rarity: Uncommon Cost: {1}{B} As an additional cost to cast this spell

When Knowledge Vault leaves the battlefield

Sleight of Mind [Unlimited Edition] Phyrexian Dreadnought Set: Fourth Edition Type: SorcerySet: Unlimited 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. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)