On the other hand, I'm pretty sure a lot of the original legend was about all in the time of the riding around. Looking it up, the title first comes up right at the very first Purge of the Haunted Hills turn. At that point in time, setting up and maintaining information networks with the local villages probably plays into it just as much or more as fighting foes does.
Re: the Dämmerlichtreiter reputation and those who started carving the emblematic wooden riders.
It started for 'riding the coming of night across Stirland, bringing ruin to the enemies of the Hunter Count'. So I think Count Stolpe, the Stirland League.
"The Dämmerlichtreiter," the man breathes.
You blink in surprise at him. "The what now?" You had been prepared for all sorts of reactions, but not calling you that.
He stares, wild-eyed, pointing accusingly. "You! The Rider of Dusk! The woman who rides the coming of night across Stirland, bringing ruin to the enemies of the Hunter-Count!"
So… a weapon of The Man.
Then came the Purge, melting the Singing King, and taking thorough vengeance for Abel. Probably here it adds the 'Scourge of the Undead, Hammer of Sylvania' aspect from the witnessing soldiers. And the palling around with Asarnil may add some exotic shine.
The idol carving started in the Hunters Hills, which were being sold off to former Stirland crossbowmen returning with their silver from Belegar's Expedition. Soldiers who had witnessed or heard stories of how when you wanted a fort, mountain or citadel to fall, the best thing you can do is send the Dämmerlichtreiter in ahead, solo.
Sometimes, the defenders even slaughter
themselves rather than face her wrath. It's hard to say how the common solider took the Waaagh popping and Orcs
stopping fighting outside the Citadel, but I could see many Stirlanders, in absence of any means to actually know, ascribing it to the familiar, growing legend. So as with the Singing King, she brought her wrath to a terrible enemy, and saved the common soldier.
Those are the tales that built the legend of the Dämmerlichtreiter from Instrument of Hunter Count wrath to Protector of the common folk (I.e. me, the poor solider assaulting that now-weakened position). Also of Countesses with Necrach nuisances.
That's my read anyway. So to me it seems the martial aspects have become foremost- this is someone you want at your side when facing enemies beyond the human.