This forum is to be used for all discussions pertaining to Obsidian Entertainment's Neverwinter Nights 2, the Mask of the Betrayer expansion pack, the Storm of Zehir expansion pack, and the Mysteries of Westgate adventure pack.
Qara will always betray you no matter what, and will always auto-level herself for the battle. She is the only companion - going into the fight with Garius, that will automatically betray you.
Sand is relatively easy to avoid with betrayal, and surprisingly Bishop isn't that difficult either. (..Bishop will always be "evil", but that doesn't mean he will fight against you.)
Both Sand and Bishop like complements, and like to "lead".
The two that *can* be difficult to persuade are either Neeshka or Elanee (..and obviously Elanee's potential betrayal happens earlier.)