Cheapest priced copy (Modern Horizons 3 Commander): $0.59 at Card Kingdom, near mint, their price list as of .
Hourglass of the Lost 
Artifact · Rare · Modern Horizons 3 Commander · #40
{T}: Add {W}. Put a time counter on this artifact.
{T}, Remove X time counters from this artifact and exile it: Return each nonland permanent card with mana value X from your graveyard to the battlefield. Activate only as a sorcery.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.59 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 3 Commander | 40 | Rare | $1.79 | $4.49 |
| Modern Horizons 3 Commander | 92 | Rare | $0.59 | — |
One ruling from Wizards of the Coast
- 7 June 2024If a card in your graveyard has {X} in its mana cost, X is considered to be 0.