I use a similar build but I prefer punish - roar because it procs multiple times a second with several white mobs.
Importantly roar is fire damage, so with sweep attack - blazing sweep you can consider stacking %fire damage in addition to %sweep damage.
With our builds a good golden flense becomes the new dream
Edit: at 350k dmg this will kill elites in 1 go on normal (3 seconds?), at 490k you can do this on hard. thats as far as I've gotten on hardcore.
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Importantly roar is fire damage, so with sweep attack - blazing sweep you can consider stacking %fire damage in addition to %sweep damage.
With our builds a good golden flense becomes the new dream
Edit: at 350k dmg this will kill elites in 1 go on normal (3 seconds?), at 490k you can do this on hard. thats as far as I've gotten on hardcore.