Cheapest priced copy (Tempest): $0.35 at Card Kingdom, near mint, their price list as of .
Spinal Graft 
Enchantment — Aura · Common · Tempest · #159
Enchant creature
Enchanted creature gets +3/+3.
When enchanted creature becomes the target of a spell or ability, destroy that creature. It can't be regenerated.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tempest | 159 | Common | $0.35 | — |