Cheapest priced copy (Magic 2012): $0.35 at Card Kingdom, near mint, their price list as of .
Crumbling Colossus 
Artifact Creature — Golem · 7/4 · Uncommon · Magic 2012 · #204
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
When this creature attacks, sacrifice it at end of combat.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2012 | 204 | Uncommon | $0.35 | $0.49 |
| The List | M12-204 | Uncommon | $0.35 | — |
One ruling from Wizards of the Coast
- 22 September 2011If another player controls Crumbling Colossus when its ability tries to resolve, you’ll be unable to sacrifice it. It will simply remain on the battlefield.