Cheapest priced copy (March of the Machine): $6.99 at Card Kingdom, near mint, their price list as of .
Ozolith, the Shattered Spire 
Legendary Artifact · Rare · March of the Machine · #372
If one or more +1/+1 counters would be put on an artifact or creature you control, that many plus one +1/+1 counters are put on it instead.
{1}{G}, {T}: Put a +1/+1 counter on target artifact or creature you control. Activate only as a sorcery.
Cycling {2} ({2}, Discard this card: Draw a card.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $6.99 to $15.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine | 198 | Rare | $6.99 | $10.99 |
| March of the Machine | 372 | Rare | $9.99 | $15.99 |
| March of the Machine Promos | 198p | Rare | $6.99 | $11.99 |
| March of the Machine Promos | 198s | Rare | — | $15.99 |
| Secrets of Strixhaven Commander | 281 | Rare | $7.49 | — |
4 rulings from Wizards of the Coast
- 14 April 2023However, if Ozolith, the Shattered Spire somehow enters the battlefield with +1/+1 counters it, its first ability won't apply to itself.
- 14 April 2023If another artifact or creature you control would enter the battlefield with a number of +1/+1 counters on it, it enters with that many plus one instead.
- 14 April 2023If you somehow control two copies of Ozolith, the Shattered Spire, the number of +1/+1 counters put on an artifact or creature you control is two plus the original number. Three Ozoliths add three, and so on.
- 14 April 2023If two or more effects attempt to modify how many counters would be put onto a permanent you control, you choose the order to apply those effects, no matter who controls the sources of those effects.