So in the second half of the game i realized that the only good pair for 1 handed sword is another 1 handed sword
Having two swords allows you to keep the skyborn might buff when you swap weapons, you can build absurd amount of stacks this way and dish out incredible damage
Swapping between darkfrost edge and the one with an ice fan is one of the most fluid playstyles i've seen thus far. Spells are just a bonus.