Cheapest priced copy (Commander Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Suspicious Bookcase 
Artifact Creature — Wall · 0/4 · Uncommon · Commander Masters · #977
Defender
{3}, {T}: Target creature can't be blocked this turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
7 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Masters | 977 | Uncommon | $0.35 | — |
| Duskmourn: House of Horror Commander | 95 | Uncommon | $0.35 | — |
| Jumpstart | 487 | Uncommon | $0.35 | — |
| Core Set 2019 | 246 | Uncommon | $0.35 | $0.79 |
| The List | M19-246 | Uncommon | $0.35 | — |
| Streets of New Capenna | 245 | Uncommon | $0.35 | $0.49 |
| Avatar: The Last Airbender Eternal | 170 | Uncommon | $0.59 | $0.49 |
One ruling from Wizards of the Coast
- 13 July 2018Activating Suspicious Bookcase's ability after a creature has become blocked won't cause that creature to become unblocked.