Cheapest priced copy (Fourth Edition): $0.49 at Card Kingdom, near mint, their price list as of .
Island Fish Jasconius 
Creature — Fish · 6/8 · Rare · Summer Magic / Edgar · #61
This creature doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {U}{U}{U}. If you do, untap this creature.
This creature can't attack unless defending player controls an Island.
When you control no Islands, sacrifice this creature.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
6 printings · $0.49 to $29.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Revised Edition | 61 | Rare | $0.59 | — |
| Fourth Edition Foreign Black Border | 78 | Rare | — | — |
| Fourth Edition | 78 | Rare | $0.49 | — |
| Arabian Nights | 16 | Rare | $29.99 | — |
| Foreign Black Border | 61 | Rare | — | — |
| Summer Magic / Edgar | 61 | Rare | — | — |
One ruling from Wizards of the Coast
- 1 May 2006Reworded so that it triggers only once at beginning of upkeep, instead of being an activated ability usable any time during your upkeep. You can no longer make infinite combos with this ability.