Slifer the Sky Dragon [JUMP-EN061] Ultra Rare Sea Serpent each player's Life Points become

each player's Life Points become half the combined Life Points of both players

cards cannot be added from either player's Main Deck to the hand

this card is also destroyed

Maurer Progenitor

To Tribute Summon this card

Slifer the Sky Dragon [JUMP-EN061] Ultra Rare Sea Serpent each player's Life Points becomeSet: Shonen Jump Magazine Promos Card type: Effect Monster Rarity: Ultra Rare Attack: ? Defense: ? Requires 3 Tributes to Normal Summon (cannot be Normal Set). This card's Normal Summon cannot be negated. When Normal Summoned, cards and effects cannot be activated. During the End Phase, if this card was Special Summoned: Send it to the Graveyard. This card gains 1000 ATK and DEF for each card in your hand. When a monster(s) is Normal or Special