It plays lots of creatures, as seen on Altar Ibn-La'Ahad, sacrifices permanents for value as with Caesar, Legion's Emperor, and wants to run the board in combat with cards like Isshin, Two Heavens as One, Brutal Hordechief, and Zurgo Helmsmasher
Therefore it's best to pick a Mono Red Commander that itself provides some of the tools to address these weaknesses so you always have access to it in the command zone
The Matriarch is one of the few difficulty 4 villains, an enemy on par with the likes of Progeny, whose attack redefined the setting, or the Chairman, the guy who made Rook City a Wretched Hive
There is only the Supreme King, the only "friend" that matters to him is the darkness in his heart, and his sole motivation is to acquire overwhelming and absolute power over everyone and everything