Cheapest priced copy (Dark Ascension): $0.35 at Card Kingdom, near mint, their price list as of .
Headless Skaab 
Creature — Zombie Warrior · 3/6 · Common · Dark Ascension · #40
As an additional cost to cast this spell, exile a creature card from your graveyard.
This creature enters tapped.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dark Ascension | 40 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 15 April 2013Players can only respond once this spell has been cast and all its costs have been paid. No one can try to otherwise remove the creature card you exiled in order to prevent you from casting this spell.
- 15 April 2013You must exile exactly one creature card from your graveyard to cast this spell; you cannot cast it without exiling a creature card, and you cannot exile additional creature cards.