Poll
14%
57%
14%
14%
Ludo and Kressh don't like each other enough to work together, or else they would have killed Ragnos long beforehand. Likewise, Exar Kun doesn't have the neccessary knowledge to defeat such a threat, though he -may- have the capability. Kun led a relatively short life, so his potential and his shown power are likely two different things.
But Ragnos would probably still wipe his ass with these guys.