Island Fish Jasconius [Arabian Nights] Visions your opponent cannot activate cards

your opponent cannot activate cards or effects until the end of the Damage Step

that target's ATK den DEF become 0 until the End Phase

{T}: Target creature loses all landwalk abilities until end of turn

You can only use each effect of "Joker's Knight" once per turn

Island Fish Jasconius [Arabian Nights] Visions your opponent cannot activate cardsSet: Arabian Nights Type: Creature Fish Rarity: Rare Cost: {4}{U}{U}{U} Island Fish Jasconius doesn't untap during your untap step. At the beginning of your upkeep, you may pay {U}{U}{U}. If you do, untap Island Fish Jasconius. Island Fish Jasconius can't attack unless defending player controls an Island. When you control no Islands, sacrifice Island Fish Jasconius.