Cheapest priced copy (The List): $0.49 at Card Kingdom, near mint, their price list as of .
Endless Wurm 
Creature — Wurm · 9/9 · Rare · Urza's Saga · #249
Trample
At the beginning of your upkeep, sacrifice this creature unless you sacrifice an enchantment.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | USG-249 | Rare | $0.49 | — |
| Urza's Saga | 249 | Rare | $0.79 | — |
One ruling from Wizards of the Coast
- 4 October 2004You choose whether to sacrifice an enchantment or not on resolution. If not, then you sacrifice this card. You can choose to not sacrifice an enchantment if you no longer control this card on resolution.