Check this build for example. [1.1.4.2] Yugol's Shattered Blade - Spin2Win High Cunning Blademaster - ~6min 170 crucible
You can see the combo of Yugol’s relic skill in sync with devotion procs.
Voracious reach requires constant spinning and rare interruptions. So it’s better to have nukes on long CD and devotions proc.
It’s scales with attack speed for the record.
Interesting what kind of combination you’re cooking with Bone Harvest, perhaps Deathguard Reaper /Oppressor?