Magical Hack [30th Anniversary Edition] Avacyn Restored Promos Spells you cast cost {1}

Spells you cast cost {1} less to cast for each card type they share with cards exiled with Cemetery Prowler

Exile Mizzix's Mastery

Take an extra turn after this one if an opponent cast a blue spell this turn

{U}: Untap enchanted creature

Set: 30th Anniversary Edition Type: Creature — Angel Rarity: Uncommon Cost: {3}{W}{W} Flying

Magical Hack [30th Anniversary Edition] Avacyn Restored Promos Spells you cast cost {1}Set: 30th Anniversary 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.)