Since both of these cards are black, you'll definitely want Inalla, Archmage Ritualist as your commander, but in a deck built around Wizard enters-the-battlefield triggers, you can never have too many Panharmonicon effects, making Naban, Dean of Iteration a great support card in the 99
What makes her so good is her ability to control the game
As such, it seems very likely that Crook of Condemnation will be a very popular sideboard card in Hour of Devastation Standard
Swords to Plowshares Swords to Plowshares sets the standard for creature removal
The power is immense, and there's few commanders that can wield it like Marvels Captain America, First Avenger
Playing defense is fine, but another good way to defend yourself is to get your strategy activated ahead of schedule