Cheapest priced copy (Eldritch Moon): $0.35 at Card Kingdom, near mint, their price list as of .
Foul Emissary 
Creature — Human Horror · 1/1 · Uncommon · Eldritch Moon · #158
When this creature enters, look at the top four cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
When you sacrifice this creature while casting a spell with emerge, create a 3/2 colorless Eldrazi Horror creature token.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 158 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 13 July 2016Foul Emissary’s last ability triggers if it’s sacrificed for any reason while you’re casting a spell with emerge, whether or not you’re casting that spell for its emerge cost. For example, if you sacrifice it to activate the ability of Ashnod’s Altar while casting Decimator of the Provinces for {10}, its ability will trigger.