The Tyrant Neptune [JUMP-EN041] Ultra Rare Dark During damage calculation (in either

During damage calculation (in either player's turn)

Treat this card's name as that monster's name

15 more cards

until the end of your opponent's next turn

This card cannot declare an attack the turn this effect is activated

The Tyrant Neptune [JUMP-EN041] Ultra Rare Dark During damage calculation (in eitherSet: Shonen Jump Magazine Promos Card type: Effect Monster Rarity: Ultra Rare Attack: 0 Defense: 0 This card cannot be Special Summoned. You can Tribute Summon this card by Tributing 1 monster. This card gains the total ATK and DEF of the monsters Tributed for its Tribute Summon. When this card is Tribute Summoned, select 1 of the Tributed Effect Monsters in the Graveyard. Treat this card's name as that monster's name, and this card gains the same