Cheapest priced copy (Time Spiral): $0.69 at Card Kingdom, near mint, their price list as of .
Shadow Sliver 
Creature — Sliver · 1/1 · Common · Time Spiral · #76
All Sliver creatures have shadow. (They can block or be blocked by only creatures with shadow.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.69 to $13.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secret Lair Drop | 624 | Rare | — | $4.99 |
| Time Spiral | 76 | Common | $0.69 | $13.99 |
5 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.
- 19 March 2021Multiple instances of shadow on the same creature are redundant.
- 19 March 2021Once a creature has been blocked, that creature remains blocked and will deal and be dealt combat damage even if it gains or loses shadow or if the blocking creature gains or loses shadow.
- 19 March 2021If an attacking creature has multiple evasion abilities, such as shadow and flying, a creature can block it only if that creature satisfies all of the appropriate evasion abilities.