Axel versus Laslo.

If you cast antimagic on the Knights to prevent them from gaining life leech, that's a good tactic, thanks! - You won't be able to affect their morale, because every self-respecting Laslo goes for leadership, empathy, and inspiration (even if you manage to reduce it by -5, it will simply negate his leadership, but it won't go into the negative). Distraction with magic doesn't affect the inspiration skill, because it's not magical, but physical.

I didn't think about inspiration... so it will work even if antimagic is cast on the Zealots? In any case, the enemy hero, if not prepared for this, will move less often. You can take advantage of this by slowing down his creatures or speeding up yours, and all together take out his Knights while everyone else is just watching. Or, you can take summoning magic and constantly cast phantoms on Knights or Archers.

Added 1 minute ago
I need to check about antimagic. I don't remember if it can be cast on enemies