This build is for expert user only.
Close Range use katana /claw toghter with Rotten Pine Resin so u can poison and bleed your enemy( very very effective) and great combustion.
Long range harass the foe with Poison Throwing Knifes and best of all use the mist then go inside it and cast your firestorm, your foe wont expect it because u cant see in the mist.
This is a very difficult build but if u master it u gonna win every match cause the opponent has no idea how to avoid your attacks.