kailasa vs abysia

[Sandman]

The bandar longbows will probably do more damage to his own troops, with their crappy precision.

I'd go for truckloads of melee Bandars, with screens of markatas to tie up his slow moving troops and hopefully break their formations. Follow this up with Swarm if you have it.

Abysians have lousy defence, so you want strong troops to smash their armour. Definitely cast Strength of Giants on your units, taking priority over Legions of Steel (though that's good for your armoured Bandars). Cloud spells could be effective as well.

I'd not bother using Atavis for stealth raiding. EA Abysia has fearsome PD. Their armies are slow however, and yours are fast, so you should have an easier time concentrating your forces. Aim to wipe out their smaller armies, and try to go on the offensive with your own small forces. Abysia has expensive forts, so there will probably be large areas of their empire without any defensive garrisons.

The advice about using Wolven Winter is good. Your own troops won't be badly affected, but Burning Ones lose 1 point of attack, defence, strength and movement for each level of coldness. Use it before big battles, even (especially) in your own provinces, and during battles for forts.