Cheapest priced copy (Conspiracy): $0.35 at Card Kingdom, near mint, their price list as of .
Barbed Shocker 
Creature — Insect · 2/2 · Uncommon · Time Spiral · #144
Trample, haste
Whenever this creature deals damage to a player, that player discards all the cards in their hand, then draws that many cards.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Conspiracy | 136 | Uncommon | $0.35 | $0.49 |
| Time Spiral | 144 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 25 September 2006The number of cards the player draws is equal to the number of cards they discarded, not the amount of damage dealt by Barbed Shocker.