Cheapest priced copy (Planar Chaos): $1.29 at Card Kingdom, near mint, their price list as of .
Shivan Wumpus 
Creature — Beast · 6/6 · Rare · Planar Chaos · #121
Trample
When this creature enters, any player may sacrifice a land of their choice. If a player does, put this creature on top of its owner's library.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $1.29 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Planar Chaos | 121 | Rare | $1.29 | $1.49 |
One ruling from Wizards of the Coast
- 1 February 2007When Shivan Wumpus enters, first the active player gets the option to sacrifice a land. If they decline, the next player in turn order gets the option. If a player elects to sacrifice a land, Shivan Wumpus is put on top of its owner's library, but then all remaining players still get the option. If all players decline, then nothing happens and Shivan Wumpus stays on the battlefield.