Mermaid Knight [DR2-EN137] Rare XY146 You can only Special Summon

You can only Special Summon "Diabellstar the Black Witch" once per turn this way

Set: Rarity Collection II (25th Anniversary Edition) Card type: Fusion/Effect Monster Rarity: Quarter Century Secret Rare Attack: 3300 Defense: 3300 3 monsters with different names Must first be Fusion Summoned using only Fusion Materials from your hand and field

if you have 1 or more Life cards

Set: World Championships 2016 Type: Dragon Rarity: Ultra Rare Retreat cost: Colorless

Mermaid Knight [DR2-EN137] Rare XY146 You can only Special SummonSet: Dark Revelation Volume 2 Card type: Effect Monster Rarity: Rare Attack: 1500 Defense: 700 While 'Umi' is on the field, this card can attack twice during the same Battle Phase.