Cheapest priced copy (Onslaught): $0.35 at Card Kingdom, near mint, their price list as of .
Tribal Unity 
Instant · Uncommon · Onslaught · #294
Creatures of the creature type of your choice get +X/+X until end of turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.35 to $3.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Planechase | 80 | Uncommon | $0.39 | — |
| Onslaught | 294 | Uncommon | $0.35 | $3.49 |