Horn of the Unicorn [DB1-EN034] Common Link Monster or 1 Spell/Trap that specifically

or 1 Spell/Trap that specifically lists the card "Ancient Gear Golem" in its text

also all LIGHT monsters on the field lose 400 ATK/DEF

Set: Hidden Summoners Card type: Effect Monster Rarity: Super Rare Attack: 1600 Defense: 1500 You can discard this card

Set: Legendary Collection Kaiba Card type: Normal Monster Rarity: Ultra Rare Attack: 1800 Defense: 1500 A monster with a mighty cannon barrel

Horn of the Unicorn [DB1-EN034] Common Link Monster or 1 Spell/Trap that specificallySet: Dark Beginning 1 Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 Increase THE ATK and DEF of a monster equipped whith this card by 700 points. When this card is sent from the field to the Graveyard, it returns to the top of your Deck.