Island Fish Jasconius

Island Fish Jasconius

Creature - Fish | Power/Toughness: 6 / 8 (CMC 7)
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.