Betray triggers after the rescue. As far as I know an ally will auto betray if the surrounding group is set to empty.
@1st. Son
Help Agent Martin in: A Favor for Liberty
AE arc #381565
My 1st. Video: Agent Martin in the new tutorial zone.
thanks
it turns out the map won't allow me to use an ally, and I have to use this map 
I'm not in game, but I am thinking of the arc I am making.
I want a fixed NPC and a group around him. And I want them to have a discussion. Boss does not do this because only the boss talks.
So I am thinking of making an ally who talks to the enemy group around him, then having the ally betray. I'm not sure when the ally can betray so I'm hoping it is right after he is rescued.
Anyone used this?
Not the use I am doing, but it occurs to me that this might be good for the classic master and students - "Defeat my students and then I will face you." so the master watches you fight the others and will only fight if you defeat the minions with them.