Abeix doesn't seem targettable with anything ranged.
I was whopping every stack of every enemy in existence with my l33t archers, so I thought I'd go after Abeix ... only to find none of my ranged units were allowed to target him
And that's both arrows and spells 
WTF ... some warning would have been appreciated.
Lost everything because I had set my stack of doom around a couple strong defenders and the rest mages and archers. My 'strong defenders' couldn't get in front because of the 1 tile wide walkway, yadda yadda, lost all my units. :/