Notes from author
I ran a pyro focused SL 11 build that was really great and this is to just expand a bit more.
1: Increase dex to use Estoc
2: Increase attunement for desired spells
3: Increase vitality so I can survive a hit of magic!
With this build you have the firepower to take out most people with a single blow and even those 2k hp tanks run for their life :) no one is safe
When i run pyro i find it is best to be extremely offensive but still smart. Pop power within with your unupgraded hand, switch back to grass crest shield, start off with great fireballs from your strong hand and see how things play out.
Overall i love pyro based builds and finding new was to improve, cheers :)