I have a player who is interested in playing a character who can cast spells through their weapon, a.k.a. a magus.
We looked into ruling it like two-weapon fighting, only you use a magic skill and a combat skill, and the advantages to activate the secondary weapon actually go to triggering the magic. The difficulty increases for casting that spell are applied to the attack as usual.
But I worry this breaks some action economy and gives the character what is, essentially, two powerful actions on their turn.
Any thoughts or ideas how to make this work, or should I keep casting and attacking separate?