Ghostrick Mansion
Field SpellMonsters cannot attack face-down Defense Position monsters, but can attack directly if all monsters their opponent controls are face-down Defense Position. All effect damage, and battle damage inflicted by monsters other than "Ghostrick" monsters, is halved.
Ghostrick Museum
Field SpellMonsters you control, except "Ghostrick" monsters, cannot attack. Monsters cannot attack face-down Defense Position monsters, but can attack directly if all monsters their opponent controls are face-down Defense Position. At the end of the Damage Step, change any monster that inflicted battle damage to a player during this battle to face-down Defense Position.
Ghostrick Parade
Field SpellMonsters cannot attack face-down Defense Position monsters, but can attack directly if all monsters their opponent controls are face-down Defense Position. Your opponent takes no damage. When an opponent's monster declares a direct attack: You can add 1 "Ghostrick" card from your Deck to your hand.