Cheapest priced copy (The List): $11.99 at Card Kingdom, near mint, their price list as of .
Alliance of Arms 
Sorcery · Rare · Commander 2011 · #4
Join forces — Starting with you, each player may pay any amount of mana. Each player creates X 1/1 white Soldier creature tokens, where X is the total amount of mana paid this way.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $11.99 to $12.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2011 | 4 | Rare | $12.99 | — |
| The List | CMD-4 | Rare | $11.99 | — |