Cheapest priced copy (Stronghold): $0.35 at Card Kingdom, near mint, their price list as of .
Acidic Sliver 
Creature — Sliver · 2/2 · Uncommon · Stronghold · #126
All Slivers have "{2}, Sacrifice this permanent: This permanent deals 2 damage to any target."
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.35 to $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Premium Deck Series: Slivers | 13 | Uncommon | — | $0.69 |
| Stronghold | 126 | Uncommon | $0.35 | — |
2 rulings from Wizards of the Coast
- 1 July 2013If the creature type of a Sliver changes so it's no longer a Sliver, it will no longer be affected by its own ability. Its ability will continue to affect other Sliver creatures.
- 1 July 2013Abilities that Slivers grant, as well as power/toughness boosts, are cumulative. However, for some abilities, like flying, having more than one instance of the ability doesn't provide any additional benefit.