REALLY hard to hit units counter

[Juzza]

Considering your nation a fairly simple option is to use Boulder throwers, one hit from a boulder and their down, defence won't help you against them!!

Or possibly javelin throwers, but they're likely to be less accurate.

[Kuritza]

Equip a Niefel Jarl with a vine shield. Van attacks .> he's entangled => his defense drops to 0 => he's dead.
If anything, its niefels who need a counter...