Cheapest priced copy (Marvel Super Heroes Commander): $0.49 at Card Kingdom, near mint, their price list as of .
War Machine, Avenging Arsenal 
Legendary Artifact Creature — Human Hero · 3/5 · Rare · Marvel Super Heroes Commander · #375
Flying
Whenever War Machine attacks, attacking modified creatures you control gain double strike until end of turn. (Equipment, Auras you control, and counters are modifications.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes Commander | 63 | Rare | $0.49 | $0.79 |
| Marvel Super Heroes Commander | 375 | Rare | $2.49 | — |