Cheapest priced copy (Alara Reborn): $0.99 at Card Kingdom, near mint, their price list as of .
Knight of New Alara 
Creature — Human Knight · 2/2 · Rare · Alara Reborn · #70
Each other multicolored creature you control gets +1/+1 for each of its colors.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.99 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Alara Reborn | 70 | Rare | $0.99 | $2.99 |
| Dominaria United Commander | 156 | Rare | $0.99 | — |
| Alara Reborn Promos | 70★ | Rare | — | $1.29 |
One ruling from Wizards of the Coast
- 1 May 2009For example, a white creature gets no bonus. A white and blue creature gets +2/+2. A white, blue, and black creature gets +3/+3, and so on.