Cleric with the Lightning Domain (sub-domain of Air) is thematically similar. You can take a 1 level dip into fighter for weapon and armor proficiency. I'm not sure how much else you're looking for. It seems like most of what makes the Tempest domain is the ability to deal additional lightning damage when you hit or are hit. But that's going to be harder to replicate.
Thank you but what I want a cleric who could dish out damage but could not heal. It was a very specific character concept and I am trying to stay away from making GM calls to say abilities do A and not B. It just becomes a mess if I do and could be potentially unfair to my players. The most I could do is take classes other than cleric and just say these powers are the divine magic of a cleric but is a different spell-casting class all together (preferably one that casts divine spells).
Th easiest way to make a cleric that can deal a lot of damage but not heal is to be a cleric of a non-good god. You can choose to deal negative energy with your channel energy class feature (or if your deity is evil it's automatically chosen).
You can then use Channel Smite feat to deal that damage with your melee weapon.
This doesn't change the fact that all the cure spells are still on your spell list, so you can still heal. But basically nothing is going to remove that.
Thanks. I may just have to make a class for this character to pull this off being the kind of character the NPC is. It is a little disappointing that the rules do not have a class that allows you to become mortal Thor wielding divine spells.
Well, the problem is that the divine spell casting list doesn't give you a lot of direct damage dealing spells. Especially not lightning ones.
It's just how the cleric spell list is.
You can do some things to change it, but I don't think any of it would get you where you want to be.
Uh...just so you know that's a 3rd party archetype. Not that there's anything wrong with 3rd party stuff, just wanted to make sure you knew that.
Also, for some reason this is in the playtest forum instead of the PF1 forum.
Also, for what its worth the Weapon Sworn Archetype is like a way worse Warpriest.
I strongly suggest if the "weapon sworn" is the sort of thing you're after that you simply play a warpriest. They are the official Cleric-Fighter hybrid class. They don't get full BAB but their self buffing abilities make them better than having full BAB. And they still have access to the first siz levels of cleric casting, which the weapon sworn archetype loses. And they still get an ability to boost both their weapons and armor, while the armor sworn only gets an armor boosting option.