Cheapest priced copy (Avatar: The Last Airbender Eternal): $2.29 at Card Kingdom, near mint, their price list as of .
The Mechanist, Tactical Tinkerer 
Lita, Mechanical Engineer
Legendary Artifact Creature — Artificer · 3/3 · Mythic · Avatar: The Last Airbender Eternal · #4
Vigilance
At the beginning of your end step, untap each other artifact creature you control.
{3}{W}, {T}: Create a 5/5 colorless Vehicle artifact token named Zeppelin with flying and crew 3. (It has "Tap any number of creatures you control with total power 3 or more: This token becomes an artifact creature until end of turn.")
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $2.29 to $11.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 6 | Mythic | $11.99 | — |
| Avatar: The Last Airbender Eternal (The Mechanist, Tactical Tinkerer) | 4 | Mythic | $2.29 | $2.49 |