We definitely do need two Axemen. We shouldn't need to poprush a skirm unless VOx brings all 3 skirms to bear - an Archer vs Skirm in city is a 0% odd battle - the chance of damaging the unit enough to give the 2nd archer a winning chance is really quite low. I wouldn't risk fighting off 3 archers though.
Incidently, it's unlikely that Vox will bring all 3 archers to bear on us for at least a little while, since one of those archers is badly wounded. Even if it got 2 xp and thus a promo, it would take several turns to heal out in the wild.
-Arrian
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