something like this
like
1. skellie archers
2. bowmen
3. devilfish(hail to devilfishes xD)
4. decaying zombies
5. cerberus
reason for this combo is the heavy morale penalty and there is no good tank in this army
and rest got shitty hp
and to add up to te difficulty
(play as mage) without the use of damaging chaos spells
a loss campaign ofcourse since i don't think it possible to do without losses xD