There’s a couple of good ones you can get from M0, Time-breaching talon and Iridieus fragment. They’re better than most of the trinkets available, even at 372 ilvl.
I looked at your kill of Grimtotem on Friday and you didn’t extend your dogs with neither of your Nether Portal tyrants, that’s quite a damage loss. Using Vilefiend instead of Demonic Calling would also give you more single target damage in raid. You can pre cast Power Siphon before the pull when you have 2 imps out from Inner Demons so you aren’t wasting a GCD on it during you portal ramp. All these little things add up over a longer fight, as opposed to with M+ bosses.
The tier set bonuses don’t add a huge amount, they’re good but pretty minor.
Try this build instead BoQAbtPS25JQs0VfQSDmhm+p3gESSkIBSTLg0SSCpFAAAAA0SkEJEQIRyBi0SSyBIAAAAAAA
It has Vilefiend and uses Soulburn. It’s a fast shard spender for the portal to boost your pitlord further