Many sets from 2023 printed specific Phyrexian incentives, and we can see it in cards like Tangled Skyline, Essence of Orthodoxy, and Grafted Butcher
The Riders of Rohan deck is focused on Humans and monarch mechanics, this deck floods the board with tokens and exploits combat synergies for dominance
Sure, they are all in one convenient bundle of flexibility but the options you lose by it not being at one mana is comparable to the options you gain by having them all from one card
5 Liberator, Urza's Battlethopter Liberator, Urza's Battlethopter is the newest available option for those looking to construct a colorless Commander deck
What people dont know is how to build their deck in such a way that they can play four copies without it hurting their ability to cast their spells
If you go in that direction, you're going to have the enviable problem of deciding what you don't want to include