Cheapest priced copy (Onslaught): $0.35 at Card Kingdom, near mint, their price list as of .
Crude Rampart 
Creature — Wall · 4/5 · Uncommon · Onslaught · #17
Defender (This creature can't attack.)
Morph {4}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Onslaught | 17 | Uncommon | $0.35 | $0.99 |
One ruling from Wizards of the Coast
- 4 October 2004If it attacks while face down and is turned face up during combat, this will not remove it from combat.