Cheapest priced copy (Scourge): $0.49 at Card Kingdom, near mint, their price list as of .
Consumptive Goo 
Creature — Ooze · 1/1 · Rare · Scourge · #62
{2}{B}{B}: Target creature gets -1/-1 until end of turn. Put a +1/+1 counter on this creature.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Scourge | 62 | Rare | $0.49 | $8.99 |
One ruling from Wizards of the Coast
- 4 October 2004If it targets itself, it gets both -1/-1 and the +1/+1 counter during resolution. Since state-based actions (like being at zero toughness) are not checked until resolution is done, it does not die.