Cheapest priced copy (Modern Horizons 3): $0.35 at Card Kingdom, near mint, their price list as of .
Fetid Gargantua 
Creature — Horror · 4/4 · Common · Modern Horizons 3 · #94
{2}{B}: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)
Whenever one or more +1/+1 counters are put on this creature, you may draw two cards. If you do, you lose 2 life.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 3 | 94 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 7 June 2024If a creature somehow loses all of its +1/+1 counters, it can adapt again and get more +1/+1 counters.
- 7 June 2024You can always activate an ability that will cause a creature to adapt. As that ability resolves, if the creature has a +1/+1 counter on it for any reason, you simply won't put any +1/+1 counters on it.