Island Fish Jasconius doesn't untap during your untap step.
At the beginning of your upkeep, you may pay . 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.
You must pay oUoUoU during your untap phase to untap Island Fish. Island Fish cannot attack unless opponent has islands in play. Island Fish is destroyed immediately if at any time you have no islands in play.
--This card has no flavor text --