Cheapest priced copy (Commander Legends: Battle for Baldur's Gate): $2.79 at Card Kingdom, near mint, their price list as of .
Manifold Key 
Artifact · Uncommon · The Zeta Set · #348
{1}, {T}: Untap another target artifact.
{3}, {T}: Target creature can't be blocked this turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
7 printings · $2.79 to $329.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 319 | Uncommon | $2.79 | $3.99 |
| Core Set 2020 | 230 | Uncommon | $3.49 | $14.99 |
| The List | M20-230 | Uncommon | — | — |
| The Zeta Set | 106 | Uncommon | — | — |
| The Zeta Set | 227 | Uncommon | — | — |
| The Zeta Set | 348 | Uncommon | — | — |
| Time Spiral Remastered | 398 | Special | $9.49 | $329.99 |
One ruling from Wizards of the Coast
- 19 March 2021Activating Manifold Key's last ability after a creature has become blocked won't cause that creature to become unblocked.