This is pretty good to go, Idaho
While it offers utility in dealing with specific threats, there are potentially better options such as Reclamation Sage or Knight of Autumn that provide additional flexibility or value
these new cards only affect our opponents while we can still draw cards just fine, they can be flashed in response to opponents drawing cards for major blowouts, and they can be paired with wheels like Windfall to strip away our opponents' hands
Im putting an emphasis on adding planeswalkers since this deck looks like it benefits from a long, grindy game, and some planeswalkers work very well in the context of a token-sacrifice strategy
Once it enters the battlefield, it is no longer a creature and is just a planeswalker
Lets look at each potential commander released through the Duskmourn main set and the Duskmourn Commander precons and rank them based on how much they fit into this new world and the new strategies they could enable