Mermail Abyssteus (UTR) [CBLZ-EN083] Ultimate Rare 256 that specifically lists the card

that specifically lists the card "Dark Magician" in its text

switch the original ATK and DEF of this card

Set: Crimson Crisis Card type: Tuner Monster Rarity: Super Rare Attack: 100 Defense: 1100 When this card is Normal Summoned

Set: Light of Destruction Card type: Fusion/Effect Monster Rarity: Super Rare Attack: 2400 Defense: 1500 "Gladiator Beast Bestiari" + 1 "Gladiator Beast" monster This card can only be Special Summoned from your Fusion Deck by returning the above cards you control to the Deck

Set: Flaming Eternity Card type: Flip/Effect Monster Rarity: Ultimate Rare Attack: 200 Defense: 900 FLIP: Equip this card to a monster on your opponent''s side of the field and treat it as an Equip Card

Mermail Abyssteus (UTR) [CBLZ-EN083] Ultimate Rare 256 that specifically lists the cardSet: Cosmo Blazer Card type: Effect Monster Rarity: Ultimate Rare Attack: 1700 Defense: 2400 You can discard 1 other WATER monster to the Graveyard; Special Summon this card from your hand. When you do: 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.