Get it and run it and love it
Bureau Headmaster's last ability reduces only the amount of generic mana in equip abilities
Dont be surprised if your Commander table tries to remove one of these Crystals as soon as possible when they enter play
Titan of Littjara really feels like a member of that cycle, other than the fact that its an Illusion instead of a Giant
We're staying on theme with Back In Town , a sorcery with a cost of 3 and X, which returns X outlaw creature cards from your graveyard to the battlefield, while Dead Before Sunrise is a de facto boardwipe at instant speed that gives +1/+0 to your outlaw creatures and the ability to tap to deal damage equal to their power to target creature
My final advice would be: use the basic frame structure as a constraint (limitation breeds creativity, Mark Rosewater says), and if needed work from there to create new details that are really meaningful for the game, and be more careful not to create more noise