Caius the Shadow Monarch [SDDE-EN001] Ultra Rare SM171 Set: EX: Team Magma vs

Set: EX: Team Magma vs Team Aqua Type: Water

Set: EX: Hidden Legends Type: Psychic

Set: Expedition: Base Set Type: Water Rarity: Holo Rare Retreat cost: Colorless

or when a Spell/Trap Card that is already face-up on the field activates its effect: You can send this card from your hand or your side of the field to the Graveyard

Caius the Shadow Monarch [SDDE-EN001] Ultra Rare SM171 Set: EX: Team Magma vsSet: Structure Deck: The Dark Emperor Card type: Effect Monster Rarity: Ultra Rare Attack: 2400 Defense: 1000 When this card is Tribute Summoned, remove from play 1 card on the field. If it was a DARK Monster Card, inflict 1000 damage to your opponent.