Beserkers on horses!

[ramorocks]

I love my Beserkers. but their speed sucks. therefore, I stop recruiting them after a week. if we could train some wild attackers on horseback then they would be the bulk of my army.
pure killers with speed.

[Stark Bledfast]

Which is likely why there aren't any.

If you're sending scholars on your attacks then attack speed is irrelevant. Everything is faster than scholars.

[Mathijsvand]

You know it's quite difficult to swing a two-handed battleaxe from a horse? It's more likely you hit yourself then! All hail the mighty kings!