From LSWiki

Kazarak Drain

  The energy control powers of the kazarak allow them to transfer
energy away from other objects.  Some of these can be used restoratively
for the kazarak, others are energy forms unusable to the kazarak, but 
still are useful for weakening opponents.

Help is availible on the following drain types:

 drain soul
 drain structure
 drain sense
 drain psyche
 drain vitality