March 30th, Stibium.
The heavy snow, worsened after the Winter Celestial's promotion, still hasn't stopped.
The conflicts on the Black Hawk Battlefield have completely subsided—under such heavy snow that blocks sight and sound, it's impossible to execute any tactics.
More often than not, stepping out means suddenly losing sight and sound of everything. Yet one can't just stay put and be buried by the snow... they can only wander around lost. As a result, it's easy to stumble into the enemy's camp and get caught
Consequently, the side inclined towards defensive inaction has a greater advantage.
The mages of Narcissus Duchy were already skilled in positional warfare. They could also control the power of this demonic snow, integrating its strength into their own spells.