Basically Undead has been a great choice for attackers for a few ages now, so i suggest playing with that to make it a theme for the new age.


My only actual gameplay suggestion would be to introduce a spell:

Cleric's Blessing -> Plague Immunity, Max duration: 5 ticks.
Makes the province immune to the effects of Plague for the duration of the spell. The province can still contract and spread the plague, but its effects will not be present while the spell is active.

Available for: Faeries (because casting of self-spells on KD mates) and Paladin (because powerful self-spells are their thing)