Notes from author
My current build for my sorcerer. You can swap the catalyst whith logan and remove the dusk crown ring for take whatever you whant. If you face some sorcerer like in the duke archives take the crest shield insted of sanctus. I take sanctus mostly for balance power within with the dusk crown so you can take the shield that suit best for you especially if you don't whant to take the dusk crown ring. The witch set is pretty rpish and it as better stat than the crimson set so why not? For the sword you can swap with a +5 lightning weapon you like (uchigatan, longsword) mostly for magic resistant ennemy. You can also turn pyromancer for a moment because ennemies very resistant to magic are not resistant to pyro. Take combustion and great combustion you have lot of use and good damage like great souls arrow.
Sorry for my bad english, not my native language, have fun and don't forget to praise the sun and engage into jolly co-op.