Leaders?!

If the hero is a Shaman, Curator, or simply has decent defense stats (which is rare), the Cleave ability is great for Executioners. If you manage to accumulate at least two Rage points, everyone will be trembling... and the Aura of Terror is simply amazing. We charge into the attack with everyone and reduce the defense by -3 (it doesn't work against ranged units with high defense, as proven). In short, there are options.