Cheapest priced copy (Zendikar Rising Promos): $6.49 at Card Kingdom, near mint, their price list as of .
Soul Shatter 
Instant · Rare · Zendikar Rising Promos · #127p
Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $6.49 to $11.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Zendikar Rising Promos | 127p | Rare | $6.49 | $8.99 |
| Zendikar Rising Promos | 127s | Rare | — | $11.99 |
| Starter Commander Decks | 108 | Rare | $6.49 | — |
| Zendikar Rising | 127 | Rare | $6.99 | $6.99Out of stock |
| Zendikar Rising | 345 | Rare | $7.99 | $11.99 |
One ruling from Wizards of the Coast
- 25 September 2020As Soul Shatter resolves, first the opponent whose turn it is (or the next opponent in turn order, if it's your turn) chooses a creature or planeswalker they control with the highest mana value among that player's creatures and planeswalkers, then each other opponent in turn order does the same, knowing the choices made before them. Then all of the chosen permanents are sacrificed at the same time.