(JP) "Water Leviathan @Ignister"-IGAS-JP034
You can Ritual Summon this card with "A.I.'s Ritual". If this card is Ritual Summoned: You can return all monsters your opponent controls with 2300 or less ATK to the hand. You can target 1 face-up monster your opponent controls; return all Link Monsters from your GY to the Extra Deck, then the targeted monster's ATK becomes 0. You can only use this effect of "Water Leviathan @Ignister" once per turn. Once per battle, during damage calculation, if this card battles an opponent's monster (Quick Effect): You can halve that opponent's monster's ATK during that damage calculation only.