Klaxxi'va Pok was a member of the Klaxxi when Kil'ruk the Wind-Reaver was first born into the swarm. Kil'ruk would come to Klaxxi'va Pok's attention when he began showing innovations such having flyers dive into battle, wielding swords.
When Klaxxi'va Pok went to speak with the Wind-Reaver he was disappointed that Kil'ruk could not put aside the empress's commands. After a mogu relic cut the mantid swarm off from the voice of their empress, the Klaxxi made the decision to awaken Ninil'ko the Bloodcaller to aid and decided that Kil'ruk should be one to do so to ensure he's drawn out of his depression. With the tactics and guidance of the Bloodcaller the Mogu and the relic were destroyed, though the Bloodcaller lost his life in destroy the artifact.
It is unknown what happened to Klaxxi'va Pok afterwords but is assumed that he is killed at some point as he is not among the Klaxxi encountered by adventures in Mists of Pandaria.