Cheapest priced copy (New Capenna Commander): $15.99 at Card Kingdom, near mint, their price list as of .
Make an Example 
Sorcery · Rare · New Capenna Commander · #138
Each opponent separates the creatures they control into two piles. For each opponent, you choose one of their piles. Each opponent sacrifices the creatures in their chosen pile. (Piles can be empty.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $15.99 to $64.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| New Capenna Commander | 37 | Rare | $15.99 | — |
| New Capenna Commander | 138 | Rare | $17.99 | — |
| New Capenna Commander Promos | 37p | Rare | — | $64.99 |
One ruling from Wizards of the Coast
- 29 April 2022“Their chosen pile” means the pile of their permanents that you chose; it doesn't mean that they get to choose a pile.