Hmm. This is combo is pretty similar to what I'm finding fits my preferred play style:
Faction traits:
* Weak to Magic
* Wanderers
* Archers
* The one which gives +10% hit points
* Lucky
* Masterwork Chainmail
Sovereign traits:
* Weak to Magic (my sovereigns are always alarmingly weak to magic- thank goodness the AI almost never hits them with spells 
)
* 1st tier Earth Magic (whatever the most basic level is called)
* The +4 defense unique gauntlets
* The +3 attack trait
* Wealthy
* Attunement (or whatever the +2 mana per-turn trait is called)
* Hardy
Sovereign should be armed with a War-hammer & have Armorer as their profession.
