I'll throw in a few, but honestly, theres a lot
Ashe scanned the now decimated tundra, her husband skulked towards her, his right arm immortally limp from carrying his mighty two handed sword for days.
This is grammatically incorrect, something about having two main subjects, I think. It can easily be fixed by saying something like
As Ashe scanned the now decimated tundra, her husband skulked towards her, his right arm immortally limp from carrying his mighty two handed sword for days.
Next
“The war is over my queen, Sejauni is dead, regretfully of course.”
This is best split up into two sentences.
“The war is over my queen**.** Sejauni is dead, regretfully of course.”
Then
She rode her boar into battle followed by her general Olaf, a true juggernaut, he had almost done the king rendering one arm barely usable.
That part just makes no sense.
A hulking mass of muscle that nearly fell through the ground and snow beneath himself and a light woman barely even forcing the snow to crunch beneath her feet.
This is just a very confusing sentence, I'd recommend rewriting it
One was a hulking mass of muscle that nearly fell through the ground and snow beneath himself**, and the other was** a light woman who barely even forced the snow to crunch beneath her feet.