Cheapest priced copy (Foundations Jumpstart): $0.35 at Card Kingdom, near mint, their price list as of .
Elderfang Disciple 
Creature — Elf Cleric · 1/1 · Common · Kaldheim · #93
When this creature enters, each opponent discards a card.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Jumpstart | 432 | Common | $0.35 | — |
| Kaldheim | 93 | Common | $0.35 | $0.99 |
One ruling from Wizards of the Coast
- 5 February 2021As the 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 card in hand and sets it aside without revealing it. Then each other opponent in turn order does the same. Finally, all chosen cards are revealed and discarded at the same time.