[chrispedersen]

The spell selection kind of cheats.
It runs the spell - analyzes all possible results
and then selects the best results to figure out which spell to cast.

So, if you kill a bunch of friendsly, thats going to deprecate the spell.

So, with imps, usually what happens is they go and fly off and engage the enemy.

I bet if you script something like
X X X X BoW
After all the imps are gone, it will cast it just fine. (Presuming fatigue, no close by enemies etc.).

chris