Island Fish Jasconius [Arabian Nights] Phyrexian Praetor Then that player loses all

Then that player loses all unspent mana and you add the mana lost this way

Set: Coldsnap Theme Decks Type: Instant Rarity: Common Cost: {B} Add {B}{B}{B}

it deals that much damage to each other opponent

Lands your opponents control with the chosen name lose all land types and abilities

Set: Shadows over Innistrad Type: Sorcery Rarity: Uncommon Cost: {1}{W} Search your library for an Aura or Equipment card

Island Fish Jasconius [Arabian Nights] Phyrexian Praetor Then that player loses allSet: 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.