Cheapest priced copy (Theros Beyond Death): $4.49 at Card Kingdom, near mint, their price list as of .
Heliod's Intervention 
Instant · Rare · The List · #OTC-81
Choose one —
• Destroy X target artifacts and/or enchantments.
• Target player gains twice X life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
6 printings · $4.49 to $24.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction Commander | 81 | Rare | $4.99 | — |
| The List | OTC-81 | Rare | $4.99 | — |
| Theros Beyond Death Promos | 19p | Rare | $6.49 | $6.99 |
| Theros Beyond Death Promos | 19s | Rare | — | $6.49 |
| Theros Beyond Death | 19 | Rare | $4.49 | $4.99 |
| Theros Beyond Death | 300 | Rare | $6.99 | $24.99 |
One ruling from Wizards of the Coast
- 24 January 2020The second mode of Heliod's Intervention causes the player to gain one amount of life equal to twice X. It doesn't cause the player to gain X life then gain X life again.