Cheapest priced copy (Urza's Saga): $0.35 at Card Kingdom, near mint, their price list as of .
Venomous Fangs 
Enchantment — Aura · Common · Urza's Saga · #280
Enchant creature
Whenever enchanted creature deals damage to a creature, destroy the other creature.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Urza's Saga | 280 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 4 October 2004If the damaged creature takes both lethal damage and is destroyed by this effect, you have to regenerate the creature twice to keep it alive.