Cheapest priced copy (Avatar: The Last Airbender): $0.35 at Card Kingdom, near mint, their price list as of .
Turtle-Duck 
Creature — Turtle Bird · 0/4 · Common · Avatar: The Last Airbender · #200
{3}: Until end of turn, this creature has base power 4 and gains trample.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender | 200 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 2 October 2025Effects that modify Turtle-Duck's power without setting it will apply no matter when they started to take effect. The same is true for counters that change its power.
- 2 October 2025Turtle-Duck's ability overwrites all previous effects that set its power to a specific value. Other effects that set its power to a specific value that start to apply after the ability resolves will overwrite that part of the effect.