Cheapest priced copy (Foundations Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Broodstar 
Creature — Beast · */* · Rare · Mirrodin · #31
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying
Broodstar's power and toughness are each equal to the number of artifacts you control.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
4 printings · $0.49 to $15.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Commander | 60 | Rare | $0.49 | — |
| Planechase | 8 | Rare | $1.79 | — |
| Mirrodin | 31 | Rare | $1.79 | $15.99 |
| The List | MRD-31 | Rare | $2.29 | — |