Magical Hack [Alpha Edition] Synchro/Pendulum/Effect Monster That creature can't block this

That creature can't block this turn

Set: HeartGold & SoulSilver: Black Star Promos Type: Water Rarity: Black Star Promo Retreat cost: Colorless

(You can select up to 1 monster at a time with this effect

Set: EX: Ruby & Sapphire Type: Grass Rarity: Holo Rare Retreat cost: 0

Set: Aquapolis Type: Grass Rarity: Uncommon Retreat cost: Colorless

Magical Hack [Alpha Edition] Synchro/Pendulum/Effect Monster That creature can't block thisSet: Alpha 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.)