Cheapest priced copy (Dominaria United): $0.49 at Card Kingdom, near mint, their price list as of .
Jhoira, Ageless Innovator 
Legendary Creature — Human Artificer · 2/3 · Rare · Dominaria United · #301
{T}: Put two ingenuity counters on Jhoira, then you may put an artifact card with mana value X or less from your hand onto the battlefield, where X is the number of ingenuity counters on Jhoira.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.49 to $1.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria United | 202 | Rare | $0.49 | $0.49 |
| Dominaria United | 301 | Rare | $0.49 | $0.49 |
| Dominaria United | 342 | Rare | — | $0.49 |
| Dominaria United Promos | 202p | Rare | $0.49 | $0.49 |
| Dominaria United Promos | 202s | Rare | — | $1.29 |
One ruling from Wizards of the Coast
- 9 September 2022If Jhoira, Ageless Innovator isn't on the battlefield as the activated ability resolves, you won't be able to put any ingenuity counters on it. However, you can still put an artifact card from your hand onto the battlefield. Use the number of ingenuity counters that were on Jhoira before it left the battlefield to determine the value of X.