1. Armguards don't really synergize with firewalkers and frankly the boots sucks compared to whats out there, use climbers or a set piece depending on what you prefer Edit: Warz armguards are some of the best bracers in the game, can be a great catalyst to speedruns
2. Majority of WD's shouldn't be using a SOJ right now, not BiS
3. Hexing pants are BiS by a mile
4. A properly geared and spec'd firebarbs whirlwind isn't mana intensive at all, I don't even run a generator with IK set bonus'