[Alneyan]

Everybody is in except Machaka and Arcoscephale.

Your best bet is to go after the Barbarians or the Woodsmen for now I guess, backed by longbowmen. They should be able to make them rout fairly quickly. You may also want to pull your infantry to the back of your army, or even keep them with the longbowmen: a small squad is more likely to rout.

I am not sure what else to do with mundane troops, but then I do poorly with national troops. A row of spearmen (long spears preferably) may do the trick to halt the charge of the knights, backed by a few of the damage-dealing troops of Man (Axemen or Tower Guards). Alternatively, it might be possible to do something with Tangle Vines to keep the Knights entangled, and some firepower support: the Crones can cast Lightning Bolt at Evocation 2, a killer spell as it bypasses armour.