Scourge of the Skyclaves In the world of Modern, Scourge of the Skyclaves is a strong two-drop creature for the format
One of the things that design and development is constantly checking is to see how many creatures are in a certain color in a particular commonality
I dont see how the change, which would not affect every hybrid card the same way anyway, would help anything be better for the format at large
Also, it doesnt hurt that this commander has an activated ability to mill opponents
Where it really seeks strength is in decks with a lot of self-sacrifice like Aristocrats where you don't mind either side since you'll be sacrificing and bringing back a creature over and over again, and you'll gain life as a 1-drop or as a two-mana disturb
Champion of the Perished plays a similar role as Knight of the Ebon Legion, cards like Cryptbreaker create value, and we have a powerful planeswalker for removal, card advantage, or incremental value