Mermail Abyssteus [BLLR-EN051] Secret Rare Kaiba Once per turn: You can

Once per turn: You can target 1 monster your opponent controls with a Level less than or equal to this card's

Gains ATK/DEF equal to the combined original Levels of the materials used for its Fusion Summon x 300

Set: Shadows in Valhalla Card type: Continuous Trap Rarity: Super Rare Activate this card by targeting 1 "Ninja" monster you control and 1 face-up monster your opponent controls

Your opponent selects 1 card among them

Mermail Abyssteus [BLLR-EN051] Secret Rare Kaiba Once per turn: You canSet: Battles of Legend: Light's Revenge Card type: Effect Monster Rarity: Secret Rare Attack: 1700 Defense: 2400 You can discard 1 other WATER monster to the GY; Special Summon this card from your hand. If Summoned this way: Add 1 Level 4 or lower "Mermail" monster from your Deck to your hand. You can only use this effect of "Mermail Abyssteus" once per turn.