Cheapest priced copy (Marvel Super Heroes Commander): $1.29 at Card Kingdom, near mint, their price list as of .
Smashing Spree 
Instant · Common · Marvel Super Heroes Commander · #856
Target attacking creature gets +3/+3 and gains trample until end of turn. (It can deal excess combat damage to the player it's attacking.)
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
2 printings · $1.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes Commander | 555 | Common | $1.29 | — |
| Marvel Super Heroes Commander | 856 | Common | — | — |