Cheapest priced copy (Foundations Jumpstart): $0.35 at Card Kingdom, near mint, their price list as of .
Expedition Champion 
Creature — Human Warrior · 2/3 · Common · Zendikar Rising · #138
This creature gets +2/+0 as long as you control another Warrior.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Jumpstart | 541 | Common | $0.35 | — |
| Zendikar Rising | 138 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 25 September 2020Expedition Champion gets just +2/+0, no matter how many other Warriors you control beyond the first.