Corvis seems to be a rather nondescript Word Bearer. Beyond the way he speaks and acts, nothing in his appearance hints at his high rank.
Leader of a small Warband of Word Bearers, Corvis was sent to Kymerus by his master Dark Apostle Naberus, the leader of the Prophets of the Blighted Path. After the betrayl of Renkard Copax, a supposed ally of Naberus, Corvis helped the summoned heretics escape Kymerus. After dropping them off at Q’Sal, he parted ways, never hinting at the interest his master has in the heretics.
Nothing of his history is currently known to the heretics, but he gives off the feeling that he has fought many great and bloody wars.