Cheapest priced copy (Adventures in the Forgotten Realms): $0.35 at Card Kingdom, near mint, their price list as of .
Baleful Beholder 
Creature — Beholder · 6/5 · Common · Adventures in the Forgotten Realms · #89
When this creature enters, choose one —
• Antimagic Cone — Each opponent sacrifices an enchantment of their choice.
• Fear Ray — Creatures you control gain menace until end of turn. (A creature with menace can't be blocked except by two or more creatures.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Adventures in the Forgotten Realms | 89 | Common | $0.35 | $0.49 |
| Adventures in the Forgotten Realms | 311 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 23 July 2021In a multiplayer game, each opponent in turn order will choose which enchantment to sacrifice, and they get to know the choices made before them by other players. Once those decisions are made, the chosen enchantments are all sacrificed at the same time.