Cheapest priced copy (Ninth Edition): $0.49 at Card Kingdom, near mint, their price list as of .
Imaginary Pet 
Creature — Illusion · 4/4 · Rare · Ninth Edition · #82
At the beginning of your upkeep, if you have a card in hand, return this creature to its owner's hand.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ninth Edition | 82 | Rare | $0.49 | — |
| Ninth Edition | 82★ | Rare | — | $2.99 |
| Urza's Saga | 81 | Rare | $0.59 | — |
One ruling from Wizards of the Coast
- 1 August 2005Imaginary Pet’s ability triggers only if you have cards in your hand as your upkeep begins, and the ability checks again as it resolves. If your hand is empty at both those times, Imaginary Pet stays on the battlefield.