Purifier vs Pyromancer (and advice on my character)

Here’s my build … https://www.grimtools.com/calc/qNY4wvlZ

I know it’s nowhere near a top tier build - it goes against every recommendation, as a 2h ranged fire-based pyromancer. I just felt it fit the class name. Gear is often handed down by my other characters who seem to find a lot of fire based stuff.