Cheapest priced copy (Battlebond): $0.35 at Card Kingdom, near mint, their price list as of .
Ember Beast 
Creature — Beast · 3/4 · Common · Conspiracy: Take the Crown · #155
This creature can't attack or block alone.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
5 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Battlebond | 175 | Common | $0.35 | $0.49 |
| Conspiracy: Take the Crown | 155 | Common | $0.35 | $0.49 |
| Dominaria Remastered | 117 | Common | $0.35 | $0.49 |
| Gatecrash | 89 | Common | $0.35 | $0.49 |
| Odyssey | 190 | Common | $0.35 | $0.99 |
3 rulings from Wizards of the Coast
- 8 December 2022Ember Beast can’t attack or block unless another creature is also assigned to attack or block at the same time. Notably, two Ember Beasts can attack or block together.
- 8 December 2022Once Ember Beast has been declared as an attacker or blocker, it doesn’t matter what happens to the other creature(s).
- 8 December 2022Other creatures assigned to attack alongside Ember Beast don’t have to attack the same player or planeswalker. Other creatures assigned to block alongside Ember Beast don’t have to block the same creature as Ember Beast.