[Dedas]

Blade wind (52+ attacks, evocation 4, earth3) may be a good way to deal with glamour troops, or maybe chariots - as someone already mentioned. Then you can send in your regular troops.

Make sure that the warriors you send in against the Vans have at least a defense of 13, this because none of the Vans have higher attack than 12. High protection is less good in an economic perspective as all the Vans are pretty strong and wield high damage weapons as broad swords and axes. Buy more agile (high defense troops) instead and try to keep the numbers up. If you have more troops than the Van player you will keep their defense down and make hits (see manual).