Cheapest priced copy (Commander Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Goremand 
Creature — Demon · 5/5 · Uncommon · Core Set 2021 · #101
As an additional cost to cast this spell, sacrifice a creature.
Flying
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
When this creature enters, each opponent sacrifices a creature.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Masters | 163 | Uncommon | $0.35 | $0.49 |
| Foundations Jumpstart | 448 | Uncommon | $0.35 | — |
| Core Set 2021 | 101 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 23 June 2020As Goremand's triggered ability resolves, first the next opponent in turn order (or, if it's an opponent's turn, the opponent whose turn it is) chooses a creature they control, then each other opponent in turn order does the same knowing the choices made before them. Then all the chosen creatures are sacrificed at the same time.