Neo-Spacian Aqua Dolphin [POTD-EN003] Ultimate Rare Crimson Crisis each player's Life Points become

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

during your opponent's turn: You can detach 1 Xyz Material from this card

except "Atlantean Dragoons"

and only if you control no face-up Synchro Monsters

Neo-Spacian Aqua Dolphin [POTD-EN003] Ultimate Rare Crimson Crisis each player's Life Points becomeSet: Power of the Duelist Card type: Effect Monster Rarity: Ultimate Rare Attack: 600 Defense: 800 Once per turn, by discarding 1 card from your hand, look at your opponent''s hand and select 1 Monster Card in it. If there is a monster on your side of the field with ATK greater than or equal to the ATK of the selected monster, destroy the selected Monster Card and inflict 500 damage to your opponent. If there is no monster on your side of the field