While this isn't as powerful of an effect as Krenko, Mob Boss has, it's able to take advantage of assorted buff effects in the deck to scale quickly, and with Coat of Arms it can match or exceed the commander's output
Being able to play Discard spells is the best way to stick a midrange plan in modern, and Inquisition of Kozilek for sure suit that plan really well
If you want to win quickly, you have to force through damage
Best of all, with the TCG still at an all-time high, there are a few choice cards in this expansion that are worth an impressive amount
Excruciator being a compact way to add another angle of attack fits perfectly into a midrange strategy, which relies on being able to adapt its plans against various opponents, as opposed to a controlling strategy, which is much more concerned with the ability to answer incoming threats than finding win conditions