First off I know about the mods spellsword and smart cast. I remember I found an old mod that let you cast any spell(even mod spells) you wanted on attack similar to how the Bloodskal blade work. I think the mod even used the script from the Bloodskal to allow you to cast spells from your sword or bow ect. if anyone knows of this mod or a mod that can do this I would appreciate it if you linked it as I forget what the mod was called.