Would it be able to take the skills of one weapon and give it to another? I am using this mod for my story-telling modpack and Hodir Glaive's ability suits the Dragonslayer Swordpear very well. Just wonder if it is possible

No, this is a feature I do have in mind for the future though. I plan on having a datapack system so people can add abilities to any kind of item, but for now they are all hardcoded.