Cheapest priced copy (New Phyrexia): $0.49 at Card Kingdom, near mint, their price list as of .
Spinebiter 
Creature — Phyrexian Beast · 3/4 · Uncommon · New Phyrexia · #121
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
You may have this creature assign its combat damage as though it weren't blocked.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| New Phyrexia | 121 | Uncommon | $0.49 | $2.99 |