Cheapest priced copy (The Lost Caverns of Ixalan Commander): $0.59 at Card Kingdom, near mint, their price list as of .
Ruinous Intrusion 
Instant · Rare · Midnight Hunt Commander · #66
Exile target artifact or enchantment. Put X +1/+1 counters on target creature you control, where X is the mana value of the permanent exiled this way.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.59 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lost Caverns of Ixalan Commander | 255 | Rare | $0.59 | — |
| Midnight Hunt Commander | 28 | Rare | $0.59 | — |
| Midnight Hunt Commander | 66 | Rare | $0.99 | — |
One ruling from Wizards of the Coast
- 24 September 2021Use the permanent's characteristics as it last existed on the battlefield to determine the value of X.