Cheapest priced copy (Eldritch Moon): $0.35 at Card Kingdom, near mint, their price list as of .
Emrakul's Influence 
Enchantment · Uncommon · Eldritch Moon · #157
Whenever you cast an Eldrazi creature spell with mana value 7 or greater, draw two cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 157 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 13 July 2016Emrakul's Influence doesn't care about how much mana you paid for an Eldrazi creature spell, only what its mana value is. Cost reductions, such as that of emerge, won't change whether or not it triggers.