- Discarding 1 WATER Monster to the Graveyard is a cost to activate the effect which destroys a Set card. This effect targets the Set card to be destroyed.
- When "Ocean's Keeper" is destroyed by battle, the effect which adds 1 "Thousand-Eyes Jellyfish" (or "Cranium Fish") to your hand starts a chain. This effect activates even if "Ocean's Keeper" is destroyed and removed from play.
Community content is available under CC-BY-SA unless otherwise noted.