Creature — Beast 3/4, 2R (3)
Common
Ember Beast can't attack or block alone.
The only livestock that will survive for long in the Smelting District, ember beasts serve many functions—none of them willingly.
Illus. David Rapoza

1/24/2013: Ember 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.
1/24/2013: Once Ember Beast has been declared as an attacker or blocker, it doesn’t matter what happens to the other creature(s).
1/24/2013: Other 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.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Extended (Type 1.X)
Legal in Standard (Type 2)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern