Shatapatha Brahmana 1.4.1 mentions how Agni was chosen by the gods as their messenger:
- He recites [the eighth sâmidhenî]: 'Agni we choose as messenger!' Now the gods and the Asuras, both of them sprang from Pragâpati, were contending for superiority. When they were thus contending, the gâyatrî stood between them. That gâyatrî was the same as this earth, and this earth indeed lay between them. Now both of them knew that whichever she would side with, they would be victorious and the others would be defeated. Both parties then invited her secretly to come to them. Agni acted as messenger for the gods; and an Asura-Rakshas, named Saharakshas, for the Asuras.
We know about Agni acting as a messenger for the gods but I am more interested in the Asura who was chosen by his side. So my question is: Who is this Sahar-akshas, the messenger of the Asuras and what is his story?