Lava Mail and Lava Guard

So I've made myself lava mail lu and lava guard lu because it was my first good armor back in the day after iron armor from ferzen XD. I was wondering what can I use this armor and add combo for? What job can utilize this best? I know it also got magic fire lance auto, but why does the stats of the equips are more suited to melee?

I also made pao and apparently I don't see Iruna giving it an upgrade anytime soon....