Here is my Myrmidon DK.
GrimTools: https://www.grimtools.com/calc/q2mmwem2
Alternative: https://www.grimtools.com/calc/62amAGb2
Build designed at 1160, adapted to 1181, and goes without changes to 1191
Main concept idea is Myrmidon Strike granted skill + 100% WPS filling.
Build completes at least 150 crucible (170 with consumables) and 50 SR, cause i dont aim to any records. And more: it no green items.
Alternative spec used Cadence with maxed Deadly Momentum and bit better, but i dont like cause it lose reason to use Myrmidon Strike.
By the way, I’d seen similar build here on forum.