gonna have to spend a ton to get it to work.
You've got arguably the best primary, and the second best secondary. So it should work fine. fire/regen would be better, but you don't need the absolute best build to have potential.
Basically you won't be nearly as survivable as regen scrappers, but you'll do noticeably more damage.
alright guys ty for your info on that 
This is my favorite PvP toon (and PvE).
It will never survive like a regen but thats why you take phase...also stealth and invisi let you drop in knockback IOs.
My build is getting up there in price and has no purps or PvP ios.
I went with Pyre mastery because of the synergy with FE. However that does make me miss high defense toons and leaves me without a perception toggle.
Heat Exhaust and minus endurance guts you but you can say that about half the builds in the game (and if you go power you can get Conserve Power and physical perfection)
Fire/Fire does great in zone and arena, sometimes I feel like a blaster with healing flames.
I am PL in RL.
Freedom- Magnet Man, Hott Sauce, Stand-Up Comic
how will this build hold up in pvp? i have a lvl 43 fire/fire, havent played it in a while tho, i was just wondering if this could have potenial to be good in pvp?