Neo-Spacian Aqua Dolphin
Level 3 WATER/Warrior Effect600 ATK / 800 DEF
Once per turn: You can discard 1 card; look at your opponent's hand and choose 1 monster. If you control a monster with ATK greater than or equal to the ATK of the chosen card, destroy the chosen card, and if you do, inflict 500 damage to your opponent. Otherwise, take 500 damage.
Neo-Spacian Marine Dolphin
Level 4 WATER/Warrior Fusion Effect900 ATK / 1100 DEF
This card's name is also treated as "Neo-Spacian Aqua Dolphin". This card cannot be Special Summoned except with "NEX". Once per turn, you can discard 1 card to look at your opponent's hand and select 1 Monster Card in it. If you control a monster with ATK greater than or equal to the selected monster's, destroy the selected monster and inflict 500 damage to your opponent.