standard legal cards mtg Black Creature Deck - Knight - Powerful - Modern - Custom Built - Magic The Gathering - Rule of Law - Core

That seems like it might shift the balance of power towards more enemy-color decks than before

Mono-colored commanders greatly restrict the tools available to you, so they need to supply lots of power to make up for it, and Dragonhawk doesn't get there for me

To make this point, let's pretend your opening hand has only enough land (of the correct colors) to cast your commanders

Using Fire Magic to clear fodder for edicts is a solid line in this archetype

Their creatures will have base power and toughness 1/1

It doubles as a surprise shield: Tap 3 mana, exile it, and suddenly your legendary creature gains hexproof and indestructible until the end of the turn