Cheapest priced copy (Fifth Dawn): $3.99 at Card Kingdom, near mint, their price list as of .
Summoner's Egg 
Artifact Creature — Egg · 0/4 · Rare · Fifth Dawn · #157
Imprint — When this creature enters, you may exile a card from your hand face down.
When this creature dies, turn the exiled card face up. If it's a creature card, put it onto the battlefield under your control.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $3.99 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fifth Dawn | 157 | Rare | $3.99 | $6.99 |
3 rulings from Wizards of the Coast
- 1 December 2004The card is imprinted face down. This means that other players don’t know what the card is and you can’t look at the card once it’s imprinted (until it’s turned face up, of course). Note that effects that exile cards, including all previous imprint cards, exile those cards face up unless the effect says otherwise.
- 1 December 2004Any “When this creature is turned face up” abilities that the exiled card may have don’t trigger because the card isn’t being turned face up while it’s on the battlefield.
- 1 December 2004If the card is not a creature card when it’s turned face up, it remains exiled face up.