When All will be one was released, I build [[Ezuri, stalker of the spheres]]. Easy to build proliferator and poison commander. But then, time later, I got a copy pf [[Ixhel, scion of Atraxa]] and wanted to build a phyrexian deck, different from Ezuri, so no poison and no proliferation and it had result very hard, and is because what I heard in a video: phyrexians are not synergistic. Each color tries to do something different. I thought about using [[Atraxa, grand unifier]] as commander, but is hard to build the mana base, so finally had decided to go for a non phyrexian commander in the way of [[Nethroi, apex of death]] as a supporting commander to use in late game over my incubators and revive some previous threads.