Cheapest priced copy (March of the Machine Commander): $0.99 at Card Kingdom, near mint, their price list as of .
Gimbal, Gremlin Prodigy 
Legendary Creature — Gremlin Artificer · 4/4 · Mythic · March of the Machine Commander · #3
Artifact creatures you control have trample.
At the beginning of your end step, create a 0/0 red Gremlin artifact creature token. Put X +1/+1 counters on it, where X is the number of differently named artifact tokens you control.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine Commander | 3 | Mythic | $0.99 | $0.99 |
| March of the Machine Commander | 91 | Mythic | $0.99 | $0.99 |
| March of the Machine Commander | 136 | Mythic | — | — |
2 rulings from Wizards of the Coast
- 14 April 2023To determine the number of differently named artifact tokens you control, count each artifact token you control once, but only if its English name isn’t exactly the same as another artifact token you’ve already counted this way.
- 14 April 2023A token’s name is its subtypes plus the word “Token” unless it’s copying another object or it was given a specific name by the effect that created it. For example, the tokens created by Gimbal’s last ability are named “Gremlin Token.” These tokens have the same name as the 2/2 red Gremlin creature tokens created by Release the Gremlins.