Cheapest priced copy (The Big Score Promos): $4.99 at Card Kingdom, near mint, their price list as of .
Ancient Cornucopia 
Artifact · Mythic · The Big Score · #46
Whenever you cast a spell that's one or more colors, you may gain 1 life for each of that spell's colors. Do this only once each turn.
{T}: Add one mana of any color.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
5 printings · $4.99 to $24.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Big Score | 16 | Mythic | $5.49 | $6.99 |
| The Big Score | 46 | Mythic | $17.99 | $24.99 |
| The Big Score | 81 | Mythic | $7.99 | $10.99 |
| The Big Score Promos | 16p | Mythic | $4.99 | $6.99 |
| The List | BIG-16 | Mythic | $5.99 | — |
3 rulings from Wizards of the Coast
- 12 April 2024Ancient Cornucopia’s triggered ability counts the number of colors the spell has (from one to five), not how many colored mana symbols there are in its mana cost or how many colors of mana you spent.
- 12 April 2024Once you choose to gain life using Ancient Cornucopia’s triggered ability, that ability won’t trigger again that turn.
- 12 April 2024Ancient Cornucopia’s triggered ability resolves before the spell that caused it to trigger. The ability will resolve even if that spell is countered. If that spell is countered, use its last known information to determine what colors it was.