Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Temporal Isolation 
Enchantment — Aura · Common · Time Spiral · #43
Flash
Enchant creature
Enchanted creature has shadow. (It can block or be blocked by only creatures with shadow.)
Prevent all damage that would be dealt by enchanted creature.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
3 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | TSP-43 | Common | $0.35 | — |
| Time Spiral | 43 | Common | $0.35 | $1.49 |
| Time Spiral Remastered | 48 | Common | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 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 2021Multiple instances of shadow on the same creature are redundant.
- 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.