Wave-Motion Cannon [CP05-EN004] Super Rare Spell Ruler When this card is sent

When this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 Set card your opponent controls

000 ATK during your turn only

if this card battles a monster: You can destroy that monster

The ATK of 1 face-up monster on the field becomes 2000 until the End Phase of this turn

Wave-Motion Cannon [CP05-EN004] Super Rare Spell Ruler When this card is sentSet: Champion Pack 5 Card type: Continuous Spell Rarity: Super Rare During your Main Phase, you can send this card to the Graveyard to inflict 1000 damage to your opponent for each of your Standby Phases that have passed since this card was activated.