Cheapest priced copy (Secret Lair Drop): $1.99 at Card Kingdom, foil, near mint, their price list as of .
Psionic Sliver 
Creature — Sliver · 2/2 · Rare · Time Spiral · #72
All Sliver creatures have "{T}: This creature deals 2 damage to any target and 3 damage to itself."
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $1.99 to $9.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secret Lair Drop | 621 | Rare | — | $1.99 |
| Time Spiral | 72 | Rare | $1.99 | $9.99 |
2 rulings from Wizards of the Coast
- 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.
- 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.