Alright, I've been wondering something for quite a while, and still have no answer. I know what to do to get the Crests and Sigils, to "activate"/whatever the weapons.
The question is...what's the point? What good comes of getting all the Crests and Sigils--what's the difference in doing that and just adding each attribute with items, to get what you want anyway? Why not just get a weapon with four open slots and customize it to your liking? Thanks.