Sea Monster [Seventh Edition] Historic you can send 1 Spell

you can send 1 Spell or Trap card you control to the Graveyard to change the target to this card

but knowledge is a skeleton key

Set: Duel Terminal 2 Card type: Normal Trap Rarity: Common Activate only when your opponent declares an attack while you control a monster

Set: 2004 Collectors Tin Card type: Effect Monster Rarity: Secret Rare Attack: 1600 Defense: 1000 If you have 1 or less cards in your hand

•WATER: Select 1 Spell/Trap Card on the dield

Sea Monster [Seventh Edition] Historic you can send 1 SpellSet: Seventh Edition Type: Creature Serpent Rarity: Common Cost: {4}{U}{U} Sea Monster can't attack unless defending player controls an Island. "Abandon ship!"